Published October 10, 2025 by Michael Le Pard , Editor‑in‑Chief
Total Motorcycle Bikers Dictionary
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Displacement – Triumph Rocket III 2294cc In-Line Triple Engine
| Dakar Bike: Motorcycle built for Dakar‑style rally racing. | |
| Dakar Rally: Famous endurance rally including motorcycles. | |
| Dale’s Run: Group ride named after a fallen rider. | |
| Dally Run: Informal, relaxed group ride. | |
| Dammits: Small fasteners on the back of pins, often dropped; also called Jesus‑clips. | |
| Dampen: To reduce or eliminate unwanted oscillations or vibrations. | |
| Damper Rod Fork: Basic telescopic fork using damper rods. | |
| Damper: Device absorbing or controlling unwanted movement (e.g., bar ends, bar snake, gel grips). | |
| Damping Adjustment: Suspension setting for compression/rebound. | |
| Damping Oil: Oil used in forks or shocks for damping. | |
| Damping Rod: Rod inside fork controlling damping. | |
| Damping System: General term for suspension damping components. | |
| Dance of the Fairies: Slang for erratic headlight beams at night. | |
| Danger Patch: Club patch earned for risky stunts. | |
| Danger Zone: Riding area with high accident risk. | |
| Danish Run: Group ride in Denmark. | |
| Dapper Bike: Custom styled with vintage elegance. | |
| Dark Custom: Harley‑Davidson marketing term for blacked‑out customs. | |
| Dark Horse: Indian Motorcycle model line. | |
| Dark Ride: Night ride. | |
| Darkside Tire: Car tire fitted to a motorcycle rear wheel. | |
| Dash Assembly (General): Consolidated entry for dash panels, switches, and lights. | |
| Dash Panel: Instrument panel on a motorcycle. | |
| Dash Switch: Switch mounted on dash panel. | |
| Dash Warning Light: Indicator light on dash. | |
| Data Logger: Device recording engine and ride data. | |
| Day Pack: Small backpack for short rides. | |
| Day‑Long: Custom touring seat made by Bill Russell. | |
| Daytona 200: Famous motorcycle race at Daytona Speedway. | |
| Daytona Bars: Handlebars styled after Daytona racers. | |
| Daytona Beach Bike Week: Annual motorcycle rally in Florida. | |
| Daytona Helmet: Helmet model named after Daytona. | |
| Daytona Rally: Rally held in Daytona. | |
| Daytona Special: Yamaha RD400 Daytona Special model. | |
| Daytona Twin Tec: Aftermarket ignition system. | |
| Daytripper Seat: Harley touring seat model. | |
| Daytripping: Short motorcycle touring rides. | |
| DBM (Double‑Breasted Mattress Thrasher): Slang for “bird‑watching” activity. | |
| DC (Direct Current): Electrical current flowing in one direction. | |
| Dead Cylinder: Engine cylinder not firing. | |
| Dead Man’s Curve: Infamous dangerous curve. | |
| Dead Man’s Switch: Safety switch cutting power if rider falls. | |
| Dead Pedal: Resting footpeg. | |
| Dead Road: Abandoned or unused road. | |
| Dead Stop: Complete stop. | |
| Dealer Auction Bike: Bike sold at dealer auction. | |
| Dealer Auction Motorcycle: Bike sold at dealer auction. | |
| Dealer Auction Sale: Sale of bikes at auction. | |
| Dealer Auction Sale: Sale of motorcycles at auction. | |
| Dealer Auction: Auction where dealers buy/sell bikes. | |
| Dealer Auction: Auction where dealers sell motorcycles. | |
| Dealer Bike Show: Motorcycle show hosted by dealer. | |
| Dealer Bike: Motorcycle sold through a dealership. | |
| Dealer Demo Model Bike: Demo bike used for test rides. | |
| Dealer Demo Model: Demo bike used for test rides. | |
| Dealer Demo Ride Bike: Bike used for test rides. | |
| Dealer Demo Ride: Test ride offered by dealer. | |
| Dealer Demo Ride: Test ride offered by dealership. | |
| Dealer Demo: Motorcycle used for test rides. | |
| Dealer Event Rally: Rally organized by dealership. | |
| Dealer Event Ride: Ride organized by dealership. | |
| Dealer Event: Event organized by dealership. | |
| Dealer Financing Option: Financing option through dealership. | |
| Dealer Financing Option: Financing plan through dealership. | |
| Dealer Financing Plan: Financing plan through dealership. | |
| Dealer Financing: Financing arranged through dealership. | |
| Dealer Financing: Financing plan arranged through dealership. | |
| Dealer Incentive Offer: Special offer from dealer. | |
| Dealer Incentive Offer: Special offer from dealership. | |
| Dealer Incentive Program: Program offering dealer discounts. | |
| Dealer Incentive Program: Program offering dealer incentives. | |
| Dealer Incentive: Special promotion offered by dealer. | |
| Dealer Incentive: Special promotion offered by dealership. | |
| Dealer Installed Accessory Kit: Kit installed by dealer. | |
| Dealer Installed Accessory Kit: Kit installed by dealership. | |
| Dealer Installed Accessory: Accessory installed by dealer. | |
| Dealer Installed Accessory: Accessory installed by dealership. | |
| Dealer Installed Option Kit: Kit installed by dealership. | |
| Dealer Installed Option: Option installed by dealership staff. | |
| Dealer Installed Option: Option installed by dealership. | |
| Dealer Invoice Document: Document showing dealer cost. | |
| Dealer Invoice Document: Document showing dealer’s cost. | |
| Dealer Invoice Price: Dealer’s cost before markup. | |
| Dealer Invoice Sheet: Invoice showing dealer cost. | |
| Dealer Invoice: Dealer’s cost sheet for a motorcycle. | |
| Dealer Invoice: Document showing dealer’s cost. | |
| Dealer License Plate: Plate issued to dealer. | |
| Dealer License Plate: Plate issued to dealership. | |
| Dealer License Registration: License plate issued to dealer. | |
| Dealer License: License allowing motorcycle sales. | |
| Dealer Markup Charge: Charge added by dealer. | |
| Dealer Markup Charge: Profit margin added by dealer. | |
| Dealer Markup Fee: Fee added by dealer. | |
| Dealer Markup Fee: Profit margin added by dealer. | |
| Dealer Markup: Profit margin added by dealer. | |
| Dealer Network Coverage: Coverage area of dealer network. | |
| Dealer Network Group: Group of authorized dealers. | |
| Dealer Network: Group of authorized dealerships. | |
| Dealer Prep Charge: Charge for prepping new bike. | |
| Dealer Prep Fee: Fee charged for setup. | |
| Dealer Prep Fee: Fee for preparing new bike. | |
| Dealer Prep Fee: Fee for preparing new motorcycle. | |
| Dealer Prep Service: Service preparing new motorcycle. | |
| Dealer Prep: Pre‑delivery setup by dealer. | |
| Dealer Service Center: Center providing dealer maintenance. | |
| Dealer Service Center: Service center at dealership. | |
| Dealer Service Manual: Service manual provided by dealer. | |
| Dealer Service Workshop: Workshop at dealership. | |
| Dealer Service: Maintenance performed by dealer. | |
| Dealer Showroom Bike: Display bike in dealership. | |
| Dealer Showroom Display Bike: Bike displayed in showroom. | |
| Dealer Showroom Display: Display bike in dealership. | |
| Dealer Showroom Display: Display bike in showroom. | |
| Dealer Showroom: Display area for motorcycles. | |
| Dealer Special Edition Bike: Special edition sold by dealer. | |
| Dealer Special Edition Model: Limited edition sold by dealer. | |
| Dealer Special Edition: Limited edition sold by dealer. | |
| Dealer Special Model: Special edition sold by dealer. | |
| Dealer Special: Custom or limited edition sold by dealer. | |
| Dealer Sponsored Event: Event sponsored by dealership. | |
| Dealer Sponsored Rally: Rally sponsored by dealership. | |
| Dealer Sponsored Ride Event: Ride sponsored by dealership. | |
| Dealer Sponsored Ride: Ride sponsored by dealership. | |
| Dealer Sticker: Price sticker on showroom bike. | |
| Dealer Stock Bike: Bike in dealer inventory. | |
| Dealer Stock Inventory Bike: Bike in dealer inventory. | |
| Dealer Stock Inventory: Inventory of bikes at dealer. | |
| Dealer Stock Inventory: Inventory of bikes at dealership. | |
| Dealer Stock: Inventory of motorcycles at dealer. | |
| Dealer Tag Plate: Temporary license plate from dealer. | |
| Dealer Tag Plate: Temporary registration plate. | |
| Dealer Tag Registration Plate: Temporary registration plate. | |
| Dealer Tag Registration: Temporary registration tag. | |
| Dealer Tag: Temporary license plate from dealer. | |
| Dealer Trade Program: Program for trade‑ins. | |
| Dealer Trade: Motorcycle traded between dealers. | |
| Dealer Trade‑In Program: Program for trading motorcycles. | |
| Dealer Trade‑In: Motorcycle traded at dealership. | |
| Dealer Transfer Bike: Bike transferred between dealers. | |
| Dealer Transfer Bike: Bike transferred between dealerships. | |
| Dealer Transfer Unit: Bike transferred between dealers. | |
| Dealer Transfer Unit: Bike transferred between dealerships. | |
| Dealer Transfer: Motorcycle transferred between dealers. | |
| Dealer Transfer: Motorcycle transferred between dealerships. | |
| Dealer Unit: Motorcycle unit in dealer stock. | |
| Dealer Used Bike: Pre‑owned motorcycle sold by dealer. | |
| Dealer Warranty Coverage Plan: Warranty plan from dealer. | |
| Dealer Warranty Coverage Plan: Warranty plan from dealership. | |
| Dealer Warranty Coverage: Warranty coverage from dealer. | |
| Dealer Warranty Coverage: Warranty provided by dealership. | |
| Dealer Warranty Plan: Warranty plan from dealer. | |
| Dealer Warranty Plan: Warranty plan from dealership. | |
| Dealer Warranty: Warranty provided by dealer. | |
| Dealer Warranty: Warranty provided by dealership. | |
| Dealer Wholesale: Dealer selling to another dealer. | |
| Dealer Workshop: Service shop at dealership. | |
| Dealer Zone Club Patch: Patch earned in dealer zone. | |
| Dealer Zone Club: Club organized by dealer zone. | |
| Dealer Zone Event: Event hosted by dealer zone. | |
| Dealer Zone Event: Event organized by dealer zone. | |
| Dealer Zone Patch: Patch earned in dealer zone. | |
| Dealer Zone Rally Ride: Rally organized by dealer zone. | |
| Dealer Zone Rally: Rally organized by dealer zone. | |
| Dealer Zone Ride: Ride organized by dealer zone. | |
| Dealer Zone Show Event: Show organized by dealer zone. | |
| Dealer Zone Show: Motorcycle show in dealer zone. | |
| Dealer Zone Show: Show organized by dealer zone. | |
| Dealer Zone Special Edition: Special edition for dealer zone. | |
| Dealer Zone Special: Special edition for dealer zone. | |
| Dealer Zone Tour Ride: Tour organized by dealer zone. | |
| Dealer Zone Tour: Tour organized by dealer zone. | |
| Dealer Zone Warranty Plan: Warranty plan for dealer zone. | |
| Dealer Zone Warranty: Warranty plan for dealer zone. | |
| Dealer Zone Warranty: Warranty specific to dealer zone. | |
| Dealer Zone Workshop Event: Workshop hosted by dealer zone. | |
| Dealer Zone Workshop: Workshop hosted by dealer zone. | |
| Dealer Zone: Geographic sales territory. | |
| Dealer‑Only Auction: Auction restricted to dealers. | |
| Dealer‑Owned Bike: Motorcycle owned by dealer. | |
| Dealer‑Prepped Bike: Bike prepared by dealer. | |
| Dealer‑Serviced Bike: Bike maintained by dealer. | |
| Dealer‑Sponsored Ride: Ride organized by a dealership. | |
| Dealer‑Supported Racer: Racer sponsored by dealer. | |
| Dealer‑Tagged Bike: Bike with dealer tag. | |
| Dealer‑Traded Bike: Bike traded between dealers. | |
| Dealer‑Warranty Bike: Bike sold with dealer warranty. | |
| Dealer‑Zone Club: Club organized by dealer zone. | |
| Dealer‑Zone Event: Event organized by dealer zone. | |
| Dealer‑Zone Patch: Patch earned in dealer zone. | |
| Dealer‑Zone Rally: Rally organized by dealer zone. | |
| Dealer‑Zone Ride: Ride organized by dealer zone. | |
| Dealer‑Zone Show: Show organized by dealer zone. | |
| Dealer‑Zone Special: Special edition sold in dealer zone. | |
| Dealer‑Zone Tour: Tour organized by dealer zone. | |
| Dealer‑Zone Unit: Unit sold in dealer zone. | |
| Dealer‑Zone Warranty: Warranty offered in dealer zone. | |
| Dealer‑Zone Workshop: Workshop in dealer zone. | |
| Death Angel Patch: Patch symbolizing fallen rider. | |
| Death Angel Ride: Ride honoring fallen riders. | |
| Death Grip: Overly tight hold on handlebars, common with new riders. | |
| Death Machine: Slang for a dangerous motorcycle. | |
| Death March Rally: Grueling endurance motorcycle rally. | |
| Death March Ride: Grueling endurance group ride. | |
| Death Patch (Memorial): Patch honoring deceased rider. | |
| Death Patch Memorial: Patch honoring deceased rider. | |
| Death Patch: Patch earned after a fatal crash (memorial). | |
| Death Patch: Patch honoring deceased rider. | |
| Death Race (Illegal): High‑speed outlaw street race. | |
| Death Race Illegal: Illegal high‑speed street race. | |
| Death Race Outlaw: Illegal high‑speed street race. | |
| Death Race: Illegal high‑speed race. | |
| Death Race: Illegal high‑speed street race. | |
| Death Rider Reputation: Rider known for recklessness. | |
| Death Rider Slang: Rider known for recklessness. | |
| Death Rider: Rider known for recklessness. | |
| Death Rider: Rider with reckless reputation. | |
| Death Valley Desert Run: Ride through Death Valley desert. | |
| Death Valley Rally: Rally through Death Valley desert. | |
| Death Valley Run: Ride through Death Valley desert. | |
| Death Valley Run: Ride through Death Valley. | |
| Death Wobble Tank‑Slapper: Violent oscillation of handlebars at speed. | |
| Death Wobble: Violent front‑end oscillation at speed. | |
| Decal Application: Process of applying decorative decals. | |
| Decal Clearcoat: Protective clear layer over decals. | |
| Decal Graphics: Custom graphic designs in decal form. | |
| Decal Kit: Set of decals for customization. | |
| Decal Overlay: Transparent layer protecting decals. | |
| Decal Removal Tool: Tool for peeling decals safely. | |
| Decal Removal: Process of removing decals. | |
| Decal Restoration Kit: Kit restoring faded or damaged decals. | |
| Decal Restorer: Product restoring faded decals. | |
| Decal Set (Factory): OEM decal set for motorcycles. | |
| Decal Set: Matching set of decals. | |
| Decal Striping Kit: Kit for pinstriping with decals. | |
| Decal Striping: Pinstriping done with decals. | |
| Decal Transfer Sheet: Sheet transferring decal designs. | |
| Decal Transfer: Transfer‑style decal. | |
| Decal Wrap (Full Bike): Full‑coverage decorative decal wrap. | |
| Decal Wrap Kit: Kit for full‑bike decal wraps. | |
| Decal Wrap: Full‑bike decal wrap. | |
| Decal: Decorative sticker applied to motorcycle. | |
| Decibel Baffle Insert: Insert reducing exhaust noise. | |
| Decibel Baffle: Insert reducing exhaust noise. | |
| Decibel Control Law: Law regulating motorcycle noise | |
| Decibel Control Law: Law regulating motorcycle noise. | |
| Decibel Control Regulation: Regulation controlling motorcycle noise. | |
| Decibel Control: General term for noise regulation. | |
| Decibel Killer Device: Device silencing aftermarket exhaust. | |
| Decibel Killer Insert: Insert silencing aftermarket exhaust. | |
| Decibel Killer: Device silencing aftermarket exhaust. | |
| Decibel Killer: Insert reducing exhaust noise. | |
| Decibel Law: Law regulating motorcycle noise. | |
| Decibel Limit Law: Law setting maximum noise level. | |
| Decibel Limit Test: Test measuring exhaust decibels. | |
| Decibel Limit: Legal noise limit. | |
| Decibel Limit: Maximum legal noise level. | |
| Decibel Meter Gauge: Gauge measuring sound levels. | |
| Decibel Meter Tool: Tool measuring sound levels. | |
| Decibel Meter: Device measuring exhaust noise. | |
| Decibel Meter: Device measuring sound levels. | |
| Decibel Rating Chart: Chart showing noise levels. | |
| Decibel Rating Standard: Standard for exhaust noise levels. | |
| Decibel Rating: Noise rating of exhaust. | |
| Decibel Rating: Rating of exhaust noise level. | |
| Decibel Test Station: Official station measuring exhaust noise. | |
| Decibel Test: Test measuring exhaust noise. | |
| Decibel Violation Fine: Fine for excessive noise. | |
| Decibel Violation Notice: Legal notice for excessive motorcycle noise. | |
| Decibel Violation Notice: Legal notice for excessive noise. | |
| Decibel Violation Penalty: Fine or punishment for excessive noise. | |
| Decibel Violation Ticket: Citation issued for excessive exhaust noise. | |
| Decibel Violation Ticket: Citation issued for excessive motorcycle noise. | |
| Decibel Violation Ticket: Ticket for excessive noise. | |
| Decibel Violation Warning: Official warning for excessive motorcycle noise. | |
| Decibel Violation: Ticket for excessive noise. | |
| Decibel Violation: Violation of noise regulations. | |
| Deck Height Clearance Tool: Tool measuring piston deck clearance. | |
| Deck Height Clearance: Space between piston and cylinder deck. | |
| Deck Height Clearance: Space between piston and deck. | |
| Deck Height Gauge: Tool measuring piston deck clearance. | |
| Deck Height Measurement: Measurement of piston deck clearance. | |
| Deck Height Tool: Tool measuring piston deck clearance. | |
| Deck Height: Distance piston sits below deck. | |
| Decked Out: Motorcycle heavily accessorized. | |
| Decked‑Out Bike: Motorcycle heavily accessorized. | |
| Decked‑Out Custom Bike: Motorcycle heavily accessorized. | |
| Decked‑Out Custom: Motorcycle heavily accessorized. | |
| Decking (Cylinder Head): Machining head surface for compression. | |
| Decking Cylinder Block: Machining block surface for compression. | |
| Decking Cylinder Head: Machining head surface for compression increase. | |
| Decking Engine Block: Machining block surface for compression. | |
| Decking Engine Head: Machining head surface for compression. | |
| Decking Service (Engine): Machining service for cylinder head. | |
| Decking Service (Head): Machining cylinder head for compression. | |
| Decking Service: Machining service for cylinder heads. | |
| Decking the Head: Machining cylinder head for compression. | |
| Decreasing Radius Corner: Turn that tightens as it progresses. | |
| Deep Dish Custom Rim: Rim with deep recessed profile. | |
| Deep Dish Custom Seat: Seat with deep sculpted contour. | |
| Deep Dish Custom Wheel: Wheel rim with deep recessed profile. | |
| Deep Dish Custom Wheel: Wheel with deep rim profile. | |
| Deep Dish Rim: Wheel rim with deep profile. | |
| Deep Dish Seat: Seat with deep contour. | |
| Deep Dish Wheel Rim: Wheel rim with deep profile. | |
| Deep Dish Wheel: Wheel with deep rim profile. | |
| Deep Groove Bearing: Bearing with deep groove raceway. | |
| Deep Groove Bearing: Bearing with deep raceway. | |
| Deep Groove Pulley Bearing: Bearing with deep groove raceway. | |
| Deep Groove Pulley Wheel: Pulley with deep groove design. | |
| Deep Groove Pulley: Pulley with deep groove design. | |
| Deep Groove Seal: Seal with deep groove design. | |
| Deep Pocket Saddle Seat: Saddle with deep rider pocket. | |
| Deep Pocket Saddle: Saddle with deep rider pocket. | |
| Deep Pocket Seat: Seat with deep rider pocket. | |
| Deep Pocket Touring Saddle: Touring saddle with deep pocket. | |
| Deep Pocket Touring Saddle: Touring saddle with deep rider pocket. | |
| Deep Pocket Touring Saddle: Touring saddle with deep sculpted pocket. | |
| Deep Pocket Touring Seat: Touring seat with deep rider pocket. | |
| Deep Pocket Touring Seat: Touring seat with deep sculpted pocket. | |
| Deep Six (Expression): Slang for discard or abandon. | |
| Deep Six (Slang): Expression meaning discard or abandon. | |
| Deep Six (Slang): To discard or abandon. | |
| Deep Six Expression: Slang for discarding or abandoning. | |
| Deep Six Slang: Slang for discarding or abandoning. | |
| Deep Six: Slang for discarding a part. | |
| Deep Six: Slang for discarding or abandoning. | |
| Deep Well Bearing: Bearing with deep raceway groove. | |
| Deep Well Socket Set: Set of sockets for recessed bolts. | |
| Deep Well Socket Tool: Socket tool for recessed bolts. | |
| Deep Well Socket Tool: Tool for recessed bolts. | |
| Deep Well Socket Wrench: Socket wrench for recessed bolts. | |
| Deep Well Socket: Socket tool for recessed bolts. | |
| Deep Well Socket: Tool for deep bolts. | |
| Deep Well Tool Set: Set of deep socket tools. | |
| Deer Alert Device: Device warning deer of motorcycles. | |
| Deer Alert Device: Whistle or device warning deer. | |
| Deer Alert Whistle Device: Device producing sound to deter deer. | |
| Deer Alert Whistle Device: Device warning deer of bikes. | |
| Deer Alert Whistle Device: Device warning deer of motorcycles. | |
| Deer Alert Whistle: Whistle device warning deer of motorcycles. | |
| Deer Alert Whistle: Whistle warning deer of bikes. | |
| Deer Alert Whistle: Whistle warning deer of motorcycles. | |
| Deer Avoidance Maneuver: Emergency swerve to avoid deer. | |
| Deer Collision Bars: Crash bars designed for deer impacts. | |
| Deer Collision Guard Bars: Bars protecting against deer strikes. | |
| Deer Collision Guard: Bars protecting against deer strikes. | |
| Deer Guard Bars: Bars protecting against deer strikes. | |
| Deer Guard Crash Bars: Bars protecting against deer collisions. | |
| Deer Guard Protection Bars: Bars protecting against deer strikes. | |
| Deer Strike Accident: Accident caused by deer collision. | |
| Deer Strike Accident: Accident involving deer collision. | |
| Deer Strike Accident: Collision with deer while riding. | |
| Deer Strike Collision: Collision with deer while riding. | |
| Deer Strike Crash: Accident involving deer impact. | |
| Deer Strike: Collision with a deer. | |
| Deer Strike: Collision with deer while riding. | |
| Deer Whistle Device: Device producing sound to deter deer. | |
| Deflector Assembly (General): Consolidated entry for deflector parts. | |
| Deflector Assembly (General): Consolidated entry for deflector shields, vests, and windshields. | |
| Deflector Fairing Kit: Kit of wind‑deflecting fairings. | |
| Deflector Fairing Panel: Panel deflecting wind or debris. | |
| Deflector Fairing: Small fairing deflecting wind upward. | |
| Deflector Kit (General): Consolidated entry for deflector kits. | |
| Deflector Piston: Two‑stroke piston design channeling fresh fuel upward. | |
| Deflector Screen: Windshield designed to deflect airflow. | |
| Deflector Shield Guard: Shield deflecting wind or debris. | |
| Deflector Shield Guard: Shield protecting from wind or debris. | |
| Deflector Shield: Shield deflecting wind or debris. | |
| Deflector Shield: Shield protecting from wind or debris. | |
| Deflector Shield: Windshield or wind deflector. | |
| Deflector Vest Gear: Vest with wind‑deflecting panels. | |
| Deflector Vest Panel: Panel deflecting wind or debris. | |
| Deflector Vest: Vest with protective deflectors. | |
| Deflector Vest: Vest with wind‑deflecting panels. | |
| Deflector Windshield Kit: Kit of wind‑deflecting shields. | |
| Deflector Windshield Panel: Panel deflecting wind upward. | |
| Deflector Windshield: Windshield deflecting wind upward. | |
| Deflector Windshield: Windshield designed to deflect air. | |
| Defog Spray: Anti‑fog spray for visors. | |
| Defog Visor Insert: Insert preventing visor fogging. | |
| Defogger: Device or spray preventing visor fogging. | |
| Defogging Anti‑Fog Spray: Spray preventing visor fog buildup. | |
| Defogging Insert Lens: Insert preventing visor fog buildup. | |
| Defogging Insert Lens: Insert preventing visor fogging. | |
| Defogging Insert Lens: Lens insert preventing fogging. | |
| Defogging Insert: Insert preventing visor fog buildup. | |
| Defogging Insert: Insert preventing visor fogging. | |
| Defogging Spray Solution: Spray preventing visor fog buildup. | |
| Defogging Spray Solution: Spray preventing visor fogging. | |
| Defogging Spray: Spray preventing visor fog buildup. | |
| Defogging Spray: Spray preventing visor fogging. | |
| Defogging System (General): Consolidated entry for defogging systems. | |
| Defogging System: System preventing visor fog buildup. | |
| Defogging Visor Insert: Insert preventing visor fogging. | |
| Defroster Device: Device preventing frost on visor. | |
| Defroster Device: Device preventing visor frost. | |
| Defroster Heating Device: Device preventing visor frost buildup. | |
| Defroster Heating Device: Device preventing visor frost. | |
| Defroster Heating Element: Heating element preventing visor frost. | |
| Defroster Vent System: System preventing visor frost buildup. | |
| Defroster Vent: Vent preventing frost on visor. | |
| Defroster: Device preventing frost on visor. | |
| Defroster: Device preventing visor frost. | |
| Defunct Brand: Motorcycle brand no longer in business. | |
| Defunct Brand: Motorcycle brand no longer operating. | |
| Defunct Manufacturer: Motorcycle brand no longer operating. | |
| Defunct Motorcycle Brand: Brand no longer producing bikes. | |
| Defunct Motorcycle Brand: Brand no longer producing motorcycles. | |
| Defunct Motorcycle Company: Brand no longer producing motorcycles. | |
| Defunct Motorcycle Company: Company no longer producing motorcycles. | |
| Delta‑V: Change in velocity, acceleration, or direction. | |
| Denier: Unit measuring fiber strength (higher number = thicker thread). | |
| De‑Restricted Bike: Motorcycle with restrictions removed. | |
| De‑Restricted ECU Map: ECU map with restrictions removed. | |
| De‑Restricted ECU Tune: ECU tune removing factory restrictions. | |
| De‑Restricted ECU: ECU tune removing factory restrictions. | |
| De‑Restricted ECU: ECU with restrictions electronically removed. | |
| De‑Restricted Exhaust System: Exhaust system with restrictions removed. | |
| De‑Restricted Exhaust System: Exhaust with restrictions removed. | |
| De‑Restricted Exhaust: Exhaust system with restrictions removed. | |
| De‑Restricted Exhaust: Exhaust with factory restrictions removed. | |
| De‑Restricted Intake System: Intake system with restrictions removed. | |
| De‑Restricted Intake: Intake system with restrictions removed. | |
| De‑Restricted Motorcycle Setup: Setup removing factory restrictions. | |
| De‑Restricted Motorcycle: Bike modified to remove restrictions. | |
| De‑Restricted: Motorcycle with factory restrictions removed. | |
| Desmodromic: Ducati valve system using cams instead of springs; allows higher RPM without valve float. | |
| Detailing: Thorough cleaning, polishing, and waxing of a motorcycle. | |
| Detonation: See Pre‑Ignition. | |
| De‑Tuned Engine Setup: Engine tuned down for reliability. | |
| De‑Tuned Engine: Engine tuned down for reliability. | |
| De‑Tuned Motor: Motor tuned down for reliability. | |
| De‑Tuned Powerplant: Engine tuned down for reliability. | |
| De‑Tuned: Motorcycle engine tuned down for reliability. | |
| De‑Valved Engine: Engine without power valve. | |
| De‑Valved Two‑Stroke Engine: Two‑stroke without power valve system. | |
| De‑Valved Two‑Stroke Setup: Two‑stroke without power valve. | |
| De‑Valved Two‑Stroke: Two‑stroke engine without power valve. | |
| De‑Valved: Two‑stroke engine with power valve removed. | |
| De‑Winterized Bike Prep: Bike prepared for spring riding. | |
| De‑Winterized Bike: Motorcycle prepared for spring riding. | |
| De‑Winterized Motorcycle Prep: Preparing bike for spring riding. | |
| De‑Winterized Motorcycle: Bike prepared for spring. | |
| De‑Winterized: Motorcycle prepared for spring riding. | |
| Diamond Frame: Tubular frame resembling a diamond shape; engine often part of structure. | |
| Dicing: 1. Informal racing on public roads. 2. Riding aggressively in dense traffic. | |
| Dieseling: Engine continues running after ignition off; also called run‑on. | |
| DILLIGAF: Acronym for “Do I Look Like I Give A F***.” | |
| Ding: Nick or scratch in paint. | |
| Dipstick: 1. Rod for checking oil level. 2. Derogatory slang for a foolish person. | |
| Dirt Bike: Off‑road motorcycle not street‑legal; sometimes called pure dirt. | |
| Disc (Brake Rotor): Metal rotor clamped by caliper pads to stop wheel. | |
| Disc Brake: Brake using caliper and pads against a disc. | |
| Displacement: Engine size, measured in cc or cubic inches. | |
| Distributor: Mechanical ignition component directing spark to plugs. | |
| Dive: 1. Front suspension compression under braking. 2. Sudden lean into a turn. | |
| DOHC (Dual Overhead Cam): Engine with two camshafts in the head. | |
| DOHV (Double Overhead Valves): Valve arrangement with dual overhead operation. | |
| Donor Cycle: Firefighter slang for sportbikes, referencing high crash risk. | |
| Dope: Alcohol/methanol‑based racing fuel. | |
| Do‑Rag: Cloth head covering to prevent sweat or “helmet hair.” | |
| Dos Equis: Nickname for Honda CBR1100XX Blackbird. | |
| DOT (Department of Transportation): Government agency regulating vehicles; DOT helmet rating indicates safety compliance. | |
| Double Cradle Frame: Frame with two tubes cradling the engine. | |
| Doubles / Triples: Large motocross jumps taken in two or three leaps. | |
| Doughnut: Burnout maneuver leaving a circular rubber mark. | |
| DQ’d: Disqualified from a race. | |
| Drag Bars: Low, straight handlebars with minimal rise. | |
| Drag Bike: Motorcycle built specifically for drag racing. | |
| Drag Pipes: Straight, unbaffled exhaust pipes. | |
| Drag Racing: Straight‑line acceleration competition, usually over a quarter mile. | |
| Drag Slick: Smooth rear tire used in drag racing for maximum traction. | |
| Drag Strip: Track designed for drag racing. | |
| Drag: Aerodynamic resistance to forward motion. | |
| Dragster: Purpose‑built drag racing motorcycle. | |
| Drain Bolt (Oil Drain Plug): Bolt removed to drain engine oil. | |
| Drain Pan: Container used to catch draining fluids. | |
| Drain Plug Washer: Crush washer sealing the oil drain plug. | |
| Drain Screw (Carburetor): Screw used to drain carburetor float bowl. | |
| Drain Tube: Tube directing drained fuel or oil. | |
| Drama Queen Bike: Custom with excessive styling or impractical features. | |
| Draw‑Through Turbo: Turbocharger setup where carburetor feeds into compressor. | |
| Dream Bike: Rider’s ideal or aspirational motorcycle. | |
| Dress Blues: Club uniform or formal riding attire. | |
| Dressed to the Nines: Rider in full, flashy gear. | |
| Dresser (Full‑Dress): Touring motorcycle with fairings, saddlebags, and trunk. | |
| Dresser: Touring motorcycle outfitted with luggage and accessories. | |
| D‑Rider: Slang for a Ducati rider. | |
| Drift Bike: Motorcycle modified for drifting. | |
| Drift Patch: Patch earned for drifting skills. | |
| Drift: Controlled sliding of the rear wheel through a corner. | |
| Drilled Rotors: Brake rotors with holes for cooling and weight reduction. | |
| D‑Ring Assembly (General): Consolidated entry for all D‑ring based fasteners, straps, and mounts. | |
| D‑Ring Belt: Belt secured with D‑rings. | |
| D‑Ring Clip: Clip shaped like a D‑ring. | |
| D‑Ring Fastener: Helmet strap fastener using two D‑shaped rings. | |
| D‑Ring Harness: Harness secured with D‑rings. | |
| D‑Ring Lock: Locking device using a D‑ring. | |
| D‑Ring Mount: Mounting point using a D‑ring. | |
| D‑Ring Strap: Strap secured with a D‑ring. | |
| D‑Ring Tie‑Down: Tie‑down point using a D‑ring. | |
| D‑Ring Tool Bag: Tool bag secured with D‑rings. | |
| D‑Ring: Metal ring used on helmets, straps, or luggage tie‑downs. | |
| Drink Holder: Accessory for holding beverages. | |
| Drive Belt: Belt transmitting power from engine to rear wheel. | |
| Drive Chain: Chain transmitting power from engine to rear wheel. | |
| Drive Pulley: Pulley driving a belt final drive. | |
| Drive Shaft: Shaft transmitting power in shaft‑drive motorcycles. | |
| Drive Sprocket: Front sprocket on chain‑drive motorcycles. | |
| Drive Train: Entire system transmitting power from engine to wheel. | |
| Driven Pulley: Rear pulley in a belt‑drive system. | |
| Driven Sprocket: Rear sprocket in a chain‑drive system. | |
| Driver Backrest: Backrest for the rider. | |
| Driver’s License: Legal license required to operate a motorcycle. | |
| Driving Lights: Auxiliary lights for improved visibility. | |
| D‑Road: Slang for a dangerous or difficult road. | |
| D‑Roller: Slang for a drag racing motorcycle. | |
| Droning: Monotonous engine sound at steady RPM. | |
| Drop Bars: Handlebars angled downward, common on cafe racers. | |
| Drop Seat: Seat mounted lower than stock. | |
| Drop Tail: Custom rear section with lowered tail. | |
| Drop‑In Filter: Replacement air filter designed to fit stock airbox. | |
| Dropped Valve: Engine failure where valve falls into cylinder. | |
| Drop‑Ship Bike: Motorcycle delivered directly from factory or warehouse. | |
| Drop‑Shovel: Harley Shovelhead engine with lowered compression. | |
| Drop‑Tank: Fuel tank styled with a dropped center. | |
| Drop‑Top Helmet: Half‑helmet style with minimal coverage. | |
| Drum Brake: Brake using shoes pressing outward against a drum. | |
| D‑Run: Organized ride starting with “D” (Durango Run, etc.). | |
| Dry Bag: Waterproof luggage bag. | |
| Dry Break Fitting: Quick‑disconnect fuel fitting. | |
| Dry Cell Battery: Maintenance‑free sealed battery. | |
| Dry Clutch: Clutch operating without oil bath. | |
| Dry Lake Racing: Land speed racing on dry lake beds. | |
| Dry Line: Racing line on a drying track. | |
| Dry Pack: Waterproof gear bag. | |
| Dry Race: Race held in dry conditions (contrast: wet race). | |
| Dry Race: Race held in dry track conditions. | |
| Dry Road: Road surface free of moisture. | |
| Dry Run: Practice ride or test run. | |
| Dry Sump Lubrication: Oil stored in external tank, not crankcase. | |
| Dry Sump: Lubrication system with oil stored in a separate tank. | |
| DSA (Driving Standards Agency): UK body overseeing motorcycle testing. | |
| D‑Series Honda: Honda motorcycles with D‑series engines. | |
| D‑Shaped Assembly (General): Consolidated entry for all D‑shaped assemblies. | |
| D‑Shaped Assembly (General): Consolidated entry for all D‑shaped components. | |
| D‑Shaped Bars: Handlebars with a D‑shaped bend. | |
| D‑Shaped Bearing: Bearing with D‑shaped profile. | |
| D‑Shaped Bolt: Bolt with D‑shaped profile. | |
| D‑Shaped Clip: Clip with D‑shaped profile. | |
| D‑Shaped Complete App (General): Consolidated entry for all D‑shaped apps. | |
| D‑Shaped Complete App Kit (General): Consolidated entry for all D‑shaped app kits. | |
| D‑Shaped Complete Assembly (General): Consolidated entry for all D‑shaped complete assemblies. | |
| D‑Shaped Complete Calculator (General): Consolidated entry for all D‑shaped calculators. | |
| D‑Shaped Complete Calculator Kit (General): Consolidated entry for all D‑shaped calculator kits. | |
| D‑Shaped Complete Chart (General): Consolidated entry for all D‑shaped charts. | |
| D‑Shaped Complete Chart Kit (General): Consolidated entry for all D‑shaped chart kits. | |
| D‑Shaped Complete Formula (General): Consolidated entry for all D‑shaped formulas. | |
| D‑Shaped Complete Formula Kit (General): Consolidated entry for all D‑shaped formula kits. | |
| D‑Shaped Complete Guide (General): Consolidated entry for all D‑shaped guides. | |
| D‑Shaped Complete Guide Kit (General): Consolidated entry for all D‑shaped guide kits. | |
| D‑Shaped Complete Kit (General): Consolidated entry for all D‑shaped complete kits. | |
| D‑Shaped Complete Manual (General): Consolidated entry for all D‑shaped manuals. | |
| D‑Shaped Complete Manual Kit (General): Consolidated entry for all D‑shaped manual kits. | |
| D‑Shaped Complete Measurement (General): Consolidated entry for all D‑shaped measurements. | |
| D‑Shaped Complete Measurement Kit (General): Consolidated entry for all D‑shaped measurement kits. | |
| D‑Shaped Complete Reference (General): Consolidated entry for all D‑shaped references. | |
| D‑Shaped Complete Reference Assembly (General): Consolidated entry for all D‑shaped reference assemblies. | |
| D‑Shaped Complete Reference Kit (General): Consolidated entry for all D‑shaped reference kits. | |
| D‑Shaped Complete Software (General): Consolidated entry for all D‑shaped software. | |
| D‑Shaped Complete Software Kit (General): Consolidated entry for all D‑shaped software kits. | |
| D‑Shaped Complete Spec (General): Consolidated entry for all D‑shaped specifications. | |
| D‑Shaped Complete Spec Assembly (General): Consolidated entry for all D‑shaped spec assemblies. | |
| D‑Shaped Complete Spec Kit (General): Consolidated entry for all D‑shaped spec kits. | |
| D‑Shaped Complete Standard (General): Consolidated entry for all D‑shaped standards. | |
| D‑Shaped Complete Standard Assembly (General): Consolidated entry for all D‑shaped standard assemblies. | |
| D‑Shaped Complete Standard Kit (General): Consolidated entry for all D‑shaped standard kits. | |
| D‑Shaped Complete Table (General): Consolidated entry for all D‑shaped tables. | |
| D‑Shaped Complete Table Kit (General): Consolidated entry for all D‑shaped table kits. | |
| D‑Shaped Complete Tool (General): Consolidated entry for all D‑shaped tools. | |
| D‑Shaped Complete Tool Kit (General): Consolidated entry for all D‑shaped tool kits. | |
| D‑Shaped Complete Unit (General): Consolidated entry for all D‑shaped units. | |
| D‑Shaped Complete Unit Kit (General): Consolidated entry for all D‑shaped unit kits. | |
| D‑Shaped Complete Upgrade (General): Consolidated entry for all D‑shaped upgrades. | |
| D‑Shaped Complete Upgrade Kit (General): Consolidated entry for all D‑shaped upgrade kits. | |
| D‑Shaped Complete Value (General): Consolidated entry for all D‑shaped values. | |
| D‑Shaped Complete Value Kit (General): Consolidated entry for all D‑shaped value kits. | |
| D‑Shaped Complete Volume (General): Consolidated entry for all D‑shaped volumes. | |
| D‑Shaped Complete Volume Kit (General): Consolidated entry for all D‑shaped volume kits. | |
| D‑Shaped Fairing: Fairing with D‑shaped profile. | |
| D‑Shaped Fender: Fender with D‑shaped profile. | |
| D‑Shaped Fork: Fork with D‑shaped tubes. | |
| D‑Shaped Frame: Frame with D‑shaped tubing. | |
| D‑Shaped Grip: Grip with D‑shaped profile. | |
| D‑Shaped Handlebar: Handlebar with D‑shaped cross‑section. | |
| D‑Shaped Housing (General): Consolidated entry for all D‑shaped housings. | |
| D‑Shaped Hub: Hub with D‑shaped profile. | |
| D‑Shaped Kit (General): Consolidated entry for all D‑shaped kits. | |
| D‑Shaped Nut: Nut with D‑shaped profile. | |
| D‑Shaped Peg: Footpeg with D‑shaped profile. | |
| D‑Shaped Pin: Pin with D‑shaped profile. | |
| D‑Shaped Piston: Piston with D‑shaped crown for two‑stroke scavenging. | |
| D‑Shaped Plate: Plate with D‑shaped profile. | |
| D‑Shaped Retainer: Retainer with D‑shaped profile. | |
| D‑Shaped Seal: Seal with D‑shaped cross‑section. | |
| D‑Shaped Seat: Seat with D‑shaped profile. | |
| D‑Shaped Spacer: Spacer with D‑shaped profile. | |
| D‑Shaped Spring: Spring with D‑shaped profile. | |
| D‑Shaped Swingarm: Swingarm with D‑shaped tubing. | |
| D‑Shaped Tank: Fuel tank with D‑shaped profile. | |
| D‑Shaped Valve: Valve with D‑shaped port. | |
| D‑Shaped Washer: Washer with D‑shaped hole. | |
| D‑Shaped Wheel: Wheel with D‑shaped rim. | |
| D‑Shovel: Harley Shovelhead variant. | |
| D‑Sidecar: Sidecar attached to the right side. | |
| D‑Sleeper: Bike that looks stock but is heavily modified. | |
| D‑Speed: Slang for very high speed. | |
| D‑Spoke Wheel: Wheel with D‑shaped spokes. | |
| D‑Sport: Slang for dual‑sport motorcycle. | |
| D‑Star: Yamaha cruiser model. | |
| D‑Street: Slang for street‑legal dirt bike. | |
| D‑Stroker: Engine modified for longer stroke. | |
| D‑Style Bars: Handlebars styled with a D‑bend. | |
| DTGO (Dyin’ To Get Off): Slang for an eager or reckless passenger. | |
| D‑Tour: Organized touring ride starting with “D.” | |
| D‑Tracker X: Kawasaki dual‑sport/supermoto model. | |
| D‑Tracker: Kawasaki dual‑sport model. | |
| D‑Tune: Slang for dyno tuning or digital tuning. | |
| D‑Type Battery: Older style motorcycle battery. | |
| Dual Brakes: Motorcycle with both front and rear brakes. | |
| Dual Carburetors: Engine with two carburetors. | |
| Dual Clutch Transmission (DCT): Automated gearbox with two clutches. | |
| Dual Disc Brakes: Two front brake discs for stronger stopping. | |
| Dual Exhaust: Two exhaust pipes, one per cylinder bank. | |
| Dual Plugging: Adding a second spark plug per cylinder for efficiency. | |
| Dual Purpose Motorcycle: Street‑legal bike with off‑road capability (e.g., BMW F650, Honda XR650L). | |
| Dual Purpose Tire: Tire suitable for both street and off‑road. | |
| Dual Seat: Seat designed for rider and passenger. | |
| Dual Sport Helmet: Helmet combining street and off‑road features. | |
| Dual Sport Motorcycle: Street‑legal bike with off‑road capability. | |
| Dual Sport: Street‑legal motorcycle with off‑road features; synonym for Dual Purpose. | |
| Dual Throttle Cables: Push‑pull throttle cable system. | |
| Dual Valve Springs: Two springs per valve for high‑RPM control. | |
| Dually: Motorcycle with dual rear wheels. | |
| Duals: Two separate exhaust pipes, one per cylinder bank. | |
| Dual‑Sport Ride: Organized ride mixing pavement and dirt. | |
| Duc: Slang for a Ducati motorcycle. | |
| Ducati: Italian motorcycle manufacturer known for performance bikes. | |
| Duck Walking: Moving a bike forward while seated, pushing with feet. | |
| Duck: Slang for a Ducati motorcycle. | |
| Ducktail Fender: Fender with a ducktail‑shaped rear. | |
| Dude Bike: Motorcycle customized for style over function. | |
| Duel Run: Informal race between two riders. | |
| Duke: Nickname for Ducati motorcycles or KTM Super Duke. | |
| Dull Ride: Slang for a boring or uneventful ride. | |
| Dummy Lights: Indicator lights on dashboard. | |
| Dump the Clutch: Rapid clutch release at high RPM for hard launch. | |
| Dump Truck Bike: Oversized, heavy custom motorcycle. | |
| Dumping the Bike: Zero‑speed tip‑over, often from rider error. | |
| Dune Bike: Motorcycle modified for sand dunes. | |
| Dune Buggy Bike: Hybrid motorcycle/buggy custom. | |
| Dune Run: Ride across sand dunes. | |
| Dune Tires: Tires designed for sand riding. | |
| Dune Tracker: Motorcycle built for dune racing. | |
| Dune Warrior: Custom themed around desert riding. | |
| Duo Glide: Classic Harley‑Davidson model with rear suspension. | |
| DuPont Coolmax®: Fabric with hollow fibers for moisture wicking. | |
| Durable Finish: Paint or coating resistant to wear. | |
| Duramax Bike: Custom themed after Duramax diesel engines. | |
| Durango Rally: Motorcycle rally in Durango, Colorado. | |
| Durban Run: Group ride in South Africa. | |
| Durham Ride: Group ride in Durham region. | |
| Dust Bowl Run: Ride through dusty terrain. | |
| Dust Devil: Small whirlwind encountered while riding. | |
| Dust Mask: Protective mask for dusty conditions. | |
| Dust Storm Ride: Ride through desert dust storm. | |
| Dusty Bike: Motorcycle covered in dust. | |
| Dutchman’s Bike: Custom styled after Dutch heritage. | |
| D‑Valve: Valve with D‑shaped porting. | |
| Dwarf Bike: Miniature custom motorcycle. | |
| D‑Window Wheel: Wheel with D‑shaped cutouts. | |
| Dyna (Harley‑Davidson): Harley model family with rubber‑mounted engines. | |
| Dyna Convertible: Harley model convertible between touring and cruiser. | |
| Dyna Glide: Harley‑Davidson model in the Dyna family. | |
| Dyna Low Rider: Harley model with low seat height. | |
| Dyna Super Glide: Popular Harley Dyna model. | |
| Dyna Switchback: Harley model convertible between bagger and cruiser. | |
| Dyna Wide Glide: Harley model with wide front forks. | |
| Dyna‑Coil: Aftermarket ignition coil. | |
| Dynafil: Tear‑resistant polyamide yarn, more robust than Cordura®. | |
| Dynaflow: Smooth, continuous power delivery (borrowed from Buick term). | |
| Dyna‑Ignition: Aftermarket electronic ignition system. | |
| Dyna‑Jet Kit: Carburetor jet kit for tuning. | |
| Dynamic Balancing: Balancing rotating parts while in motion. | |
| Dynamic Braking: Braking using engine resistance or electrical load. | |
| Dynamic Compression Ratio: Compression ratio factoring valve timing. | |
| Dynamic Damping: Suspension damping that changes with speed/force. | |
| Dynamic Ignition Timing: Ignition timing that varies with RPM/load. | |
| Dynamic Load: Load varying with motion or acceleration. | |
| Dynamic Stability Control: Electronic system enhancing stability. | |
| Dynamic Suspension: Suspension adjusting automatically to conditions. | |
| Dynamic Tuning: Adjusting systems while in operation. | |
| Dynamite (Slang): To apply full force instantly (e.g., “dynamited the brakes”). | |
| Dynamo Adjuster Assembly: Assembly of dynamo adjusters. | |
| Dynamo Adjuster Kit: Kit of dynamo adjusters. | |
| Dynamo Adjuster: Adjuster for dynamo parts. | |
| Dynamo Assembly: Assembly of dynamo parts. | |
| Dynamo Bearing Assembly: Assembly of dynamo bearings. | |
| Dynamo Bearing Kit: Kit of dynamo bearings. | |
| Dynamo Bearing: Bearing for dynamo parts. | |
| Dynamo Belt: Belt driving dynamo. | |
| Dynamo Bolt: Bolt for dynamo parts. | |
| Dynamo Chain: Chain driving dynamo. | |
| Dynamo Cover Assembly: Assembly of dynamo covers. | |
| Dynamo Cover Kit: Kit of dynamo covers. | |
| Dynamo Cover: Cover for dynamo parts. | |
| Dynamo Drive: Drive system powering dynamo. | |
| Dynamo Gear: Gear driving dynamo. | |
| Dynamo Housing Adjuster Assembly: Assembly of adjusters for dynamo housing. | |
| Dynamo Housing Adjuster Housing: Housing for dynamo housing adjusters. | |
| Dynamo Housing Adjuster Kit: Kit of adjusters for dynamo housing. | |
| Dynamo Housing Adjuster: Adjuster for dynamo housing. | |
| Dynamo Housing Assembly Kit: Kit of assemblies for dynamo housing. | |
| Dynamo Housing Assembly: Assembly of dynamo housings. | |
| Dynamo Housing Bearing Assembly: Assembly of bearings for dynamo housing. | |
| Dynamo Housing Bearing Housing: Housing for dynamo housing bearings. | |
| Dynamo Housing Bearing Kit: Kit of bearings for dynamo housing. | |
| Dynamo Housing Bearing: Bearing for dynamo housing. | |
| Dynamo Housing Complete Assembly: Complete assembly for dynamo housing. | |
| Dynamo Housing Complete Kit: Complete kit for dynamo housing. | |
| Dynamo Housing Complete Reference: Reference for dynamo housing components. | |
| Dynamo Housing Cover Assembly: Assembly of covers for dynamo housing. | |
| Dynamo Housing Cover Housing: Housing for dynamo housing covers. | |
| Dynamo Housing Cover Kit: Kit of covers for dynamo housing. | |
| Dynamo Housing Cover: Cover for dynamo housing. | |
| Dynamo Housing Kit Adjuster: Adjuster kit for dynamo housing. | |
| Dynamo Housing Kit Assembly Adjuster: Adjuster assembly kit for dynamo housing. | |
| Dynamo Housing Kit Assembly Bearing: Bearing assembly kit for dynamo housing. | |
| Dynamo Housing Kit Assembly Cover: Cover assembly kit for dynamo housing. | |
| Dynamo Housing Kit Assembly Retainer: Retainer assembly kit for dynamo housing. | |
| Dynamo Housing Kit Assembly Seal: Seal assembly kit for dynamo housing. | |
| Dynamo Housing Kit Assembly Spacer: Spacer assembly kit for dynamo housing. | |
| Dynamo Housing Kit Assembly: Kit assembly for dynamo housing. | |
| Dynamo Housing Kit Bearing: Bearing kit for dynamo housing. | |
| Dynamo Housing Kit Cover: Cover kit for dynamo housing. | |
| Dynamo Housing Kit Retainer: Retainer kit for dynamo housing. | |
| Dynamo Housing Kit Seal: Seal kit for dynamo housing. | |
| Dynamo Housing Kit Spacer: Spacer kit for dynamo housing. | |
| Dynamo Housing Kit: Kit of dynamo housings. | |
| Dynamo Housing Retainer Assembly: Assembly of retainers for dynamo housing. | |
| Dynamo Housing Retainer Housing: Housing for dynamo housing retainers. | |
| Dynamo Housing Retainer Kit: Kit of retainers for dynamo housing. | |
| Dynamo Housing Retainer: Retainer for dynamo housing. | |
| Dynamo Housing Seal Assembly: Assembly of seals for dynamo housing. | |
| Dynamo Housing Seal Housing: Housing for dynamo housing seals. | |
| Dynamo Housing Seal Kit: Kit of seals for dynamo housing. | |
| Dynamo Housing Seal: Seal for dynamo housing. | |
| Dynamo Housing Spacer Assembly: Assembly of spacers for dynamo housing. | |
| Dynamo Housing Spacer Housing: Housing for dynamo housing spacers. | |
| Dynamo Housing Spacer Kit: Kit of spacers for dynamo housing. | |
| Dynamo Housing Spacer: Spacer for dynamo housing. | |
| Dynamo Housing: Housing for dynamo. | |
| Dynamo Kit: Kit of dynamo components. | |
| Dynamo Lighting: Generator‑driven lighting system. | |
| Dynamo Magneto: Combined generator and magneto system. | |
| Dynamo Nut: Nut for dynamo parts. | |
| Dynamo Plate: Plate for dynamo parts. | |
| Dynamo Pulley: Pulley driving dynamo. | |
| Dynamo Retainer Assembly: Assembly of dynamo retainers. | |
| Dynamo Retainer Kit: Kit of dynamo retainers. | |
| Dynamo Retainer: Retainer for dynamo parts. | |
| Dynamo Seal Assembly: Assembly of dynamo seals. | |
| Dynamo Seal Kit: Kit of dynamo seals. | |
| Dynamo Seal: Seal for dynamo parts. | |
| Dynamo Spacer Assembly: Assembly of dynamo spacers. | |
| Dynamo Spacer Kit: Kit of dynamo spacers. | |
| Dynamo Spacer: Spacer for dynamo parts. | |
| Dynamo Spring: Spring for dynamo parts. | |
| Dynamo Starter: Starter motor using dynamo. | |
| Dynamo Unit: Complete dynamo assembly. | |
| Dynamo Voltage Regulator: Regulator for dynamo output. | |
| Dynamo Washer: Washer for dynamo parts. | |
| Dynamo Wiring: Wiring harness for dynamo system. | |
| Dynamo: Generator producing alternating current. | |
| Dyna‑Pak: Aftermarket performance package. | |
| Dyna‑Pro: Aftermarket performance brand. | |
| Dyna‑Race: Aftermarket racing parts. | |
| Dyna‑Shocks: Aftermarket shock absorbers. | |
| Dyna‑Sport: Aftermarket sport performance parts. | |
| Dynastar: Aftermarket performance ignition system. | |
| Dyna‑Street: Aftermarket street performance parts. | |
| Dyna‑Style Custom: Custom Harley styled after Dyna family. | |
| Dyna‑Tach: Aftermarket tachometer. | |
| Dynatek: Aftermarket ignition and performance parts brand. | |
| Dyna‑Track: Aftermarket suspension system. | |
| Dyna‑Tune: Aftermarket tuning system. | |
| Dyna‑Vision: Aftermarket lighting system. | |
| Dyna‑Wheel: Aftermarket wheel system. | |
| Dyna‑Wobble: Slang for instability in Harley Dyna models at high speed. | |
| Dyna‑Works: Aftermarket performance shop. | |
| Dyna‑X: Aftermarket performance kit. | |
| Dyna‑Y: Aftermarket performance kit variant. | |
| Dyna‑Z: Aftermarket performance kit variant. | |
| Dyna‑Zone: Aftermarket ignition control. | |
| Dyno (Dynamometer): Machine measuring horsepower and torque output. | |
| Dyno Chart: Graph showing horsepower and torque curves. | |
| Dyno Run: Test session on a dynamometer. | |
| Dyno Sheet: Printout showing horsepower/torque curves. | |
| Dyno Tuning: Adjusting fuel/ignition on a dyno for performance. | |
| Dyno‑Certified: Motorcycle tested and certified on a dynamometer. | |
| Dynojet: Brand of carburetor jet kits and tuning products. | |
| Dyno‑Proven: Performance parts validated on a dyno. | |
| Dyno‑Sheeted: Slang for showing dyno results. | |
| Dynotune: General term for tuning a bike on a dynamometer. | |
| Dyno‑Tuned: Motorcycle tuned on a dynamometer. | |
| Dyno‑Verified: Performance verified by dyno testing. | |
| Dyno‑Wars: Informal competition comparing dyno results. | |
| Dyno‑Winner: Bike with highest dyno output at an event. | |
| Dyno‑Zero: Bike showing no power on dyno (slang for failure). | |
| Dysfunctional Family Ride: Group ride humorously named for rowdy participants. | |
| Dystopian Custom: Motorcycle themed after dystopian fiction. | |
| Dzus Fastener: Quick‑release fastener used on fairings. | |
