Published October 10, 2025 by Michael Le Pard , Editor‑in‑Chief
Total Motorcycle Bikers Dictionary
-C –
| # | A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z | |
| Dictionary Letter Navigation Menu | |||||||||||||
Countersteering – Turning the bikes handlebars in one direction(at higher speeds) and having it go in the opposite direction
| C (Motorcycle Suffix): Model designation meaning Custom (e.g., Honda Shadow VT600C). | |||
| C.C.I.S. (Cranial Colon Impact Syndrome): Humorous slang for someone acting foolishly. | |||
| Cafe Chop: Converting a stock motorcycle into a cafe racer. | |||
| Cafe Racer: Motorcycle modified to resemble 1950s–60s racing bikes; originally raced between London cafés. | |||
| Cage: Slang for a car, truck, or van — seen as the “enemy” of motorcyclists. | |||
| Cager: Person driving a car, truck, or van. | |||
| California Roll: See California Stop. | |||
| California Stop: Rolling stop at an intersection without putting a foot down. | |||
| Caliper (Brake): Non‑rotating disc brake component housing pistons and pads. | |||
| Calipers (Measuring Tool): Device for measuring inside/outside distances. | |||
| Cam: Rod with lobes that open engine valves. | |||
| Camber: 1. Tilt of a wheel. 2. Convex road curvature. 3. Sideways pavement slant. | |||
| Camshaft: Engine shaft with cam lobes operating intake/exhaust valves. | |||
| Can (Exhaust): Muffler of the exhaust system, often aftermarket. | |||
| Can of Tuna: Slang for Suzuki Katana. | |||
| Caning It / Thrashing It: Riding aggressively at high speed. | |||
| Cans (Exhaust): Performance mufflers, often stainless or titanium. | |||
| Canyon Bites: Serious accidents while riding fast on canyon roads. | |||
| Canyon Carving: Riding twisty canyon roads aggressively. | |||
| Capacitor (Condenser): Device storing electrical charge. | |||
| Capacitor Discharge Ignition (CDI): Electronic ignition system using a capacitor. | |||
| Captain America Bike: Famous chopper from Easy Rider. | |||
| Carb (Carburetor): Device mixing air and fuel for combustion. | |||
| Carb Balancer: Tool for synchronizing multiple carburetors. | |||
| Carb Boots: Rubber connectors between carburetor and engine. | |||
| Carb Cleaner: Solvent for cleaning carburetors. | |||
| Carb Icing: Ice formation in carb throat under cold, damp conditions. | |||
| Carb Jet: Small orifice controlling fuel flow in carburetor. | |||
| Carb Kit: Rebuild kit for carburetors. | |||
| Carb Slide: Piston‑like part controlling airflow in carburetor. | |||
| Carb Sync: Synchronization of multiple carburetors. | |||
| Carbon Fiber: Lightweight composite material used in performance parts. | |||
| Carbon Fouling: Spark plug contamination from excess fuel. | |||
| Carbon Helmet: Helmet made from carbon fiber. | |||
| Carbon Monoxide (CO): Poisonous exhaust gas. | |||
| Carbon Ring: Carbon deposit around piston crown. | |||
| Carbon Steel: Alloy steel used in motorcycle parts. | |||
| Carburetor Heater: Device preventing carb icing. | |||
| Carburetor Rebuild: Overhaul of carburetor components. | |||
| Carcass (Tire): Structural body of a tire beneath tread. | |||
| Carcinogen: Cancer‑causing substance, e.g., exhaust fumes. | |||
| Cargo Net: Elastic net for securing luggage. | |||
| Carhop Bike: Motorcycle styled after 1950s carhop diners. | |||
| Carling Switch: Popular aftermarket electrical switch. | |||
| Carpet Drag Bike: Custom show bike with carpeted display. | |||
| Cartridge Fork: Front suspension with cartridge damping system. | |||
| Case Guards (Crash Bars): Protective bars around engine cases. | |||
| Case Hardened: Heat‑treated metal surface for durability. | |||
| Case Savers: Protective covers for engine cases. | |||
| Cash Register Bike: Motorcycle with excessive chrome and accessories. | |||
| Cassette Transmission: Gearbox design allowing quick gear cluster removal. | |||
| Cast Alloy Wheel: Wheel made from cast aluminum alloy. | |||
| Cast Frame: Motorcycle frame made from cast sections. | |||
| Cast Iron Cylinder: Cylinder made from cast iron. | |||
| Cast Wheel: Wheel manufactured by casting. | |||
| Catalytic Converter: Emissions device reducing pollutants in exhaust. | |||
| Catwalk: Slang for a wheelie. | |||
| Cavitation: Air bubble formation in hydraulic fluid. | |||
| CB (Citizen’s Band Radio): Radio communication used by riders. | |||
| CB Series: Honda’s classic CB motorcycle line. | |||
| CC (Cubic Centimeters): Engine displacement measurement. | |||
| CC Bar: Passenger backrest bar (sissy bar). | |||
| CC Rider: Slang for long‑distance rider. | |||
| CDI (Capacitor Discharge Ignition): Electronic ignition system. | |||
| CE Armor: CE‑certified protective padding in gear. | |||
| Center Hub Steering: Alternative steering system using hub pivots. | |||
| Center Stand: Fold‑out stand supporting motorcycle upright. | |||
| Centerline: Imaginary line through motorcycle’s center. | |||
| Ceramic Coating: Heat‑resistant coating for exhausts. | |||
| Ceramic Disc Brake: Brake disc made from ceramic composites. | |||
| Ceramic Piston Coating: Heat‑resistant piston coating. | |||
| Chain Adjuster: Device for adjusting chain tension. | |||
| Chain Breaker: Tool for splitting chains. | |||
| Chain Case: Enclosure covering drive chain. | |||
| Chain Drive: Final drive system using a chain. | |||
| Chain Guard: Protective cover over chain. | |||
| Chain Lube: Lubricant for motorcycle chains. | |||
| Chain Master Link: Removable link in a chain. | |||
| Chain Oiler: Device applying oil to chain. | |||
| Chain Reaction: Slang for chain failure causing damage. | |||
| Chain Roller: Roller guiding chain. | |||
| Chain Slap: Noise from loose chain hitting swingarm. | |||
| Chain Slider: Plastic guide protecting swingarm. | |||
| Chain Sprocket: Toothed wheel driving chain. | |||
| Chain Stretch: Elongation of chain links over time. | |||
| Chain Tensioner: Device maintaining chain tension. | |||
| Chain Tool: Tool for installing/removing chains. | |||
| Chain Wear Gauge: Tool measuring chain wear. | |||
| Chambered Exhaust: Exhaust with internal chambers for tuning. | |||
| Champion Spark Plug: Popular spark plug brand. | |||
| Chassis: Motorcycle frame and structural components. | |||
| Chatter: Oscillation or vibration in tires or suspension. | |||
| Check Valve: Valve allowing one‑way fluid flow. | |||
| Checkpoint Ride: Group ride with designated checkpoints. | |||
| Cheese Grater Pegs: Aggressive footpegs with sharp teeth. | |||
| Cherry Bomb Exhaust: Loud, straight‑through muffler. | |||
| Cherry Patch: Club patch earned for specific deeds. | |||
| Cherry Picker: Hydraulic lift for engines. | |||
| Chicane: Series of tight turns on a track. | |||
| Chicken Strips: Unused edges of motorcycle tires. | |||
| Chiclet Tank: Small, square fuel tank. | |||
| Chilled Cast Iron: Durable iron used in engine parts. | |||
| Chin Fairing: Small fairing below headlight. | |||
| Chin Spoiler: Aerodynamic spoiler below headlight. | |||
| Chinkers: Slang for leather chaps. | |||
| Chip Seal: Road surface of tar and gravel. | |||
| Choke: Device enriching fuel mixture for cold starts. | |||
| Chopper Bobber: Hybrid of chopper and bobber styles. | |||
| Chopper Show: Event featuring custom choppers. | |||
| Chopper Style: Custom style emphasizing long forks and raked frames. | |||
| Chopper Trike: Three‑wheeled chopper. | |||
| Chopper: Custom motorcycle with extended forks and minimalist style. | |||
| Chopperfest: Custom chopper festival. | |||
| Chopperhead: Enthusiast of chopper motorcycles. | |||
| Chopperville: Community or gathering of chopper riders. | |||
| Chopperworks: Custom shop specializing in choppers. | |||
| Chopperzilla: Nickname for oversized chopper builds. | |||
| Chow Run: Group ride to a restaurant. | |||
| Chrome Addict: Rider obsessed with chrome accessories. | |||
| Chrome Custom: Motorcycle heavily customized with chrome parts. | |||
| Chrome Dome: Slang for a bald rider or a shiny helmet. | |||
| Chrome Headlight Bucket: Classic round chrome headlight housing. | |||
| Chrome Junkie: Rider who constantly adds chrome accessories. | |||
| Chrome Plating: Electroplated finish for decorative shine. | |||
| Chrome Polish: Cleaner and protector for chrome surfaces. | |||
| Chrome Shop: Business specializing in chrome plating and polishing. | |||
| Chrome Skull: Custom skull ornament in chrome finish. | |||
| Chrome Spokes: Wheel spokes plated in chrome. | |||
| Chrome Tank: Fuel tank finished in chrome. | |||
| Chrome Wheels: Wheels plated or polished in chrome. | |||
| Chrome Wire Wheels: Spoked wheels with chrome finish. | |||
| Chrome: Shiny metal plating used for decoration. | |||
| Chronograph Watch: Watch styled for motorcyclists. | |||
| Chronometric Speedometer: Vintage mechanical speedometer with ticking needle. | |||
| Chuck Wagon Rally: Group ride with food stops. | |||
| Chuck Wagon Run: Group ride to a food stop or diner. | |||
| Chunking (Tire): Tire tread breaking away in chunks. | |||
| Chunky Tread: Tire tread with large blocks. | |||
| Church of the Open Road: Romantic phrase for motorcycling freedom. | |||
| Church Run: Group ride to a church service. | |||
| Cigar Bike: Custom motorcycle with cigar‑shaped tank. | |||
| Cigar Cutter Pegs: Footpegs shaped like cigar cutters. | |||
| Cigar Muffler: Long, cigar‑shaped muffler. | |||
| Cigarette Bike: Slang for a very fast sportbike (like a cigarette boat). | |||
| Cigarette Boat Bike: Motorcycle styled after speedboats. | |||
| Cinch Strap: Strap for securing luggage. | |||
| Cinch Strap: Strap used to secure luggage. | |||
| Circle Burner: Slang for a flat track racer. | |||
| Circle Burner: Slang for flat track racer. | |||
| Circle Track Racing: Motorcycle racing on oval tracks. | |||
| Circle Track: Oval dirt or paved racetrack. | |||
| Circuit Breaker: Electrical safety device interrupting current. | |||
| Circuit Breaker: Electrical safety device. | |||
| Circuit Racing: Motorcycle racing on closed circuits. | |||
| Circuit Racing: Racing on closed circuits. | |||
| Circuit Rider: Traveling motorcyclist or preacher. | |||
| Circus Bike: Custom motorcycle with wild, showy styling. | |||
| Circus Bike: Wildly styled custom motorcycle. | |||
| City Bike: Motorcycle designed for urban commuting. | |||
| City Lights: Small auxiliary front lights for visibility. | |||
| City Lights: Small auxiliary front lights. | |||
| Civilian Bike: Non‑police motorcycle. | |||
| Civilian Model: Non‑police version of a motorcycle. | |||
| Claiming Rule Bike: Race bike eligible for purchase by competitors under claiming rules. | |||
| Claiming Rule Bike: Race bike subject to claiming rules. | |||
| Classic Bike: Vintage motorcycle, typically 25+ years old. | |||
| Classic Chopper: Traditional 1960s–70s chopper style. | |||
| Classic Chopper: Traditional chopper style from the 1960s–70s. | |||
| Classic Rally: Motorcycle rally celebrating vintage machines. | |||
| Classic Rally: Rally celebrating vintage motorcycles. | |||
| Classic Restoration: Restoring a bike to factory condition. | |||
| Classic Restoration: Restoring a motorcycle to original factory condition. | |||
| Classic Ride: Group ride featuring vintage bikes. | |||
| Classic Ride: Group ride featuring vintage motorcycles. | |||
| Classic Show: Motorcycle show featuring restored classics. | |||
| Classic Show: Motorcycle show for restored classics. | |||
| Classic Style: Custom or restoration style emphasizing vintage looks. | |||
| Classic Style: Custom or restoration style with vintage look. | |||
| Classified Ads: Listings for buying/selling motorcycles. | |||
| Classifieds (Bike Ads): Listings for buying and selling motorcycles. | |||
| Clay Model: Clay prototype of a motorcycle design. | |||
| Clay Model: Full‑scale clay prototype of a motorcycle design. | |||
| Clean Title: Motorcycle with clear legal ownership. | |||
| Clean Up Ride: Group ride for community cleanup. | |||
| Clean Up Ride: Group ride to clean roadsides or community areas. | |||
| Cleaned Out (Engine): Engine revved to clear excess fuel. | |||
| Cleaned Out (Engine): Revving engine to clear excess fuel. | |||
| Clear Coat: Transparent protective paint layer. | |||
| Clear Lens: Transparent lens for lights or indicators. | |||
| Clear Lens: Transparent lens for lights. | |||
| Clearance Sale Bike: Discounted motorcycle at a dealership. | |||
| Clearance Sale Bike: Discounted motorcycle. | |||
| Cleated Pegs: Footpegs with raised cleats for grip. | |||
| Cleated Pegs: Footpegs with raised cleats. | |||
| Clip‑On Bars: Low, sporty handlebars clamped to forks. | |||
| Clip‑On Handlebars: Low, sporty handlebars clamped to fork tubes. | |||
| Clipped Fender: Shortened fender for custom look. | |||
| Clipped Fender: Shortened fender. | |||
| Clipping Point: Apex of a corner in racing. | |||
| Clocked Engine: Engine rotated in frame for performance or fit. | |||
| Clocked Engine: Engine rotated in frame. | |||
| Clogged Jet: Carburetor jet blocked by debris. | |||
| Close Ratio Gearbox: Transmission with tight gear spacing. | |||
| Close Ratio Gearbox: Transmission with tightly spaced gear ratios. | |||
| Clothesline Effect: Hazard of wires or ropes strung across roads. | |||
| Clothesline Hazard: Wire or rope strung across road. | |||
| Clothing Patch: Embroidered patch for jackets/vests. | |||
| Clown Bike: Over‑decorated or comical custom. | |||
| Club Bike: Motorcycle customized for club identity. | |||
| Club Colors: Patches identifying a motorcycle club. | |||
| Club Crest: Emblem of a motorcycle club. | |||
| Club Cut: Sleeveless vest worn by club members. | |||
| Clubhouse: Meeting place for a motorcycle club. | |||
| Clunk Box: Slang for a transmission that shifts roughly. | |||
| Clutch Basket: Outer housing of clutch assembly. | |||
| Clutch Cable: Cable operating clutch. | |||
| Clutch Cover: Protective cover over clutch. | |||
| Clutch Drag: Clutch not fully disengaging. | |||
| Clutch Hub: Central part of clutch assembly. | |||
| Clutch Lever: Hand lever operating clutch. | |||
| Clutch Master Cylinder: Hydraulic clutch actuator. | |||
| Clutch Plate: Friction plate in clutch. | |||
| Clutch Pull: Effort required to operate clutch. | |||
| Clutch Release Bearing: Bearing allowing clutch disengagement. | |||
| Clutch Slippage: Clutch failing to fully engage. | |||
| Clutch Spring: Spring providing clutch pressure. | |||
| Clutch Throwout: Mechanism disengaging clutch. | |||
| Clutch: Mechanism connecting engine to transmission. | |||
| Clutch: Mechanism connecting/disconnecting engine power to transmission. | |||
| Clutch‑in Coast: Coasting with clutch disengaged. | |||
| Clutchless Downshift: Shifting to a lower gear without using the clutch. | |||
| Clutchless Shifting: Shifting gears without using clutch. | |||
| Clutchless Upshift: Shifting to a higher gear without using the clutch. | |||
| Clutchmaster: Slang for a rider skilled at smooth clutch control. | |||
| Clutch‑out Launch: Hard acceleration from standstill. | |||
| Clutchpack: Complete set of clutch plates. | |||
| Clutch‑side Cover: Engine cover on clutch side. | |||
| Clutch‑side Primary: Primary drive on clutch side. | |||
| Clutch‑side Shaft: Shaft on clutch side of engine. | |||
| Clutch‑side Sprocket: Sprocket on clutch side. | |||
| Clutch‑side Tensioner: Chain/belt tensioner on clutch side. | |||
| Clutch‑side Transmission: Transmission components on clutch side. | |||
| Clutch‑side Valve: Valve located on clutch side. | |||
| Clutch‑side Window: Inspection window on clutch side. | |||
| Clutch‑side Worm Adjuster: Adjuster for worm gear mechanism. | |||
| Clutch‑side Worm Assembly Kit: Complete worm gear assembly. | |||
| Clutch‑side Worm Assembly: Assembly of worm gear on clutch side. | |||
| Clutch‑side Worm Bearing: Bearing for worm gear. | |||
| Clutch‑side Worm Bolt: Bolt securing worm gear. | |||
| Clutch‑side Worm Cover: Cover plate for worm gear. | |||
| Clutch‑side Worm Gear: Worm gear on clutch side. | |||
| Clutch‑side Worm Housing: Housing for worm gear on clutch side. | |||
| Clutch‑side Worm Nut: Nut securing worm gear. | |||
| Clutch‑side Worm Pin: Pin for worm gear assembly. | |||
| Clutch‑side Worm Plate: Plate for worm gear. | |||
| Clutch‑side Worm Retainer Clip: Clip retaining worm gear. | |||
| Clutch‑side Worm Retainer: Retainer for worm gear on clutch side. | |||
| Clutch‑side Worm Seal Kit: Seal kit for worm gear. | |||
| Clutch‑side Worm Seal: Seal for worm gear on clutch side. | |||
| Clutch‑side Worm Shaft Housing: Housing for worm shaft on clutch side. | |||
| Clutch‑side Worm Shaft: Shaft with worm gear on clutch side. | |||
| Clutch‑side Worm Spacer: Spacer for worm gear. | |||
| Clutch‑side Worm Spring Adjuster: Adjuster for worm spring. | |||
| Clutch‑side Worm Spring Assembly: Complete worm spring assembly. | |||
| Clutch‑side Worm Spring Bearing: Bearing for worm spring. | |||
| Clutch‑side Worm Spring Bolt: Bolt for worm spring. | |||
| Clutch‑side Worm Spring Cover: Cover for worm spring. | |||
| Clutch‑side Worm Spring Housing: Housing for worm spring. | |||
| Clutch‑side Worm Spring Kit Retainer: Retainer for worm spring kit. | |||
| Clutch‑side Worm Spring Kit: Replacement spring kit. | |||
| Clutch‑side Worm Spring Nut: Nut for worm spring. | |||
| Clutch‑side Worm Spring Pin: Pin for worm spring. | |||
| Clutch‑side Worm Spring Plate: Plate for worm spring. | |||
| Clutch‑side Worm Spring Retainer: Retainer for clutch worm spring. | |||
| Clutch‑side Worm Spring Retainer: Retainer for worm spring | |||
| Clutch‑side Worm Spring Seal: Seal for worm spring. | |||
| Clutch‑side Worm Spring Spacer: Spacer for worm spring. | |||
| Clutch‑side Worm Spring Washer: Washer for worm spring. | |||
| Clutch‑side Worm Spring: Spring for worm gear on clutch side. | |||
| Clutch‑side Worm Washer: Washer for worm gear on clutch side. | |||
| Clutch‑side Worm Washer: Washer for worm gear. | |||
| Clutch‑side Worm Wheel Gear: Gear wheel for clutch worm assembly. | |||
| Clutch‑side Worm Wheel: Gear wheel on clutch side. | |||
| Clutch‑side Worm Worm: Duplicate term (remove in final). | |||
| Clutch‑Up Wheelie: Wheelie initiated by popping clutch. | |||
| Clutchwork: General slang for clutch maintenance or repair. | |||
| Coach Rider: Experienced rider mentoring beginners. | |||
| Coasting: Riding with throttle closed, engine disengaged. | |||
| Coast‑to‑Coast Run: Long‑distance ride across a continent. | |||
| Coat Hanger Bars: Handlebars shaped like coat hangers. | |||
| Cobra Bars: Curved crash bars resembling a cobra’s shape. | |||
| Cobra Pipes: Aftermarket exhaust brand/style. | |||
| Cockpit: Rider’s control area including gauges and bars. | |||
| Coffin Tank: Fuel tank shaped like a coffin, common on customs. | |||
| Cognac Bike: Custom motorcycle with cognac‑colored paint. | |||
| Cold Seizure: Engine seizure from insufficient warm‑up. | |||
| Cold Start: Starting an engine when cold. | |||
| Cold Tire: Tire not yet warmed to operating temperature. | |||
| Collarbone Patch: Patch earned after breaking a collarbone. | |||
| Collector Box: Chamber where multiple exhaust headers merge. | |||
| Collector Pipes: Exhaust pipes leading into a collector box. | |||
| Collision Bars: Protective bars to reduce crash damage. | |||
| Color Run: Group ride themed around club colors. | |||
| Colors (Club Colors): Patches identifying motorcycle club membership. | |||
| Column Shifter: Rare motorcycle with car‑style column shifter. | |||
| Combat Bike: Military‑style motorcycle. | |||
| Comet Tail: Stream of sparks from scraping metal parts. | |||
| Comfort Seat: Seat designed for long‑distance comfort. | |||
| Comic Bike: Custom styled with cartoon themes. | |||
| Command Ride: Group ride led by a designated road captain. | |||
| Commando (Norton): Classic Norton motorcycle model. | |||
| Commando Pegs: Folding footpegs. | |||
| Commando Seat: Slim, flat seat style. | |||
| Commando Style: Naked, minimalist motorcycle style. | |||
| Commercial Bike: Motorcycle used for deliveries or business. | |||
| Commuter Bike: Motorcycle designed for daily commuting. | |||
| Compact Cruiser: Small‑displacement cruiser motorcycle. | |||
| Compensator Sprocket: Harley‑Davidson part reducing drivetrain shock. | |||
| Competition Bike: Motorcycle built for racing. | |||
| Compression Braking: Slowing by downshifting and engine resistance. | |||
| Compression Damping: Suspension resistance to compression. | |||
| Compression Gauge: Tool measuring cylinder compression. | |||
| Compression Ratio: Ratio of cylinder volume at BDC vs. TDC. | |||
| Compression Release: Valve releasing pressure for easier starting. | |||
| Compression Stroke: Engine stroke compressing air/fuel mixture. | |||
| Compressor (Supercharger): Device forcing more air into engine. | |||
| Concho Belt: Belt with decorative conchos. | |||
| Concho Studs: Decorative studs on saddlebags or seats. | |||
| Concho Vest: Vest decorated with conchos. | |||
| Concho Wallet: Wallet with concho ornament. | |||
| Concho Windshield Bag: Bag with concho decoration. | |||
| Concho Zipper Pull: Zipper pull with concho ornament. | |||
| Concho: Decorative metal ornament on leather gear. | |||
| Concourse Bike: Motorcycle restored to factory‑original condition. | |||
| Cone Filter: Conical air filter. | |||
| Cone Shovel: Harley‑Davidson Shovelhead engine with cone‑style cam cover. | |||
| Cone Valve: Valve with conical shape. | |||
| Cone Wheel: Wheel with conical hub. | |||
| Confederate Motorcycles: Boutique American motorcycle brand. | |||
| Confidence Corner: Corner where riders test lean confidence. | |||
| Confidence Ride: Ride designed to build rider skills. | |||
| Conical Hub: Wheel hub with conical design. | |||
| Conical Valve Spring: Valve spring with conical shape. | |||
| Conical Wheel Accessory: Accessory with conical seat. | |||
| Conical Wheel Assembly: Assembly of conical wheel parts. | |||
| Conical Wheel Bearing: Bearing with conical rollers. | |||
| Conical Wheel Bolt: Bolt with conical seat. | |||
| Conical Wheel Cap: Cap with conical seat. | |||
| Conical Wheel Cover: Cover with conical seat. | |||
| Conical Wheel Kit: Kit of conical wheel parts. | |||
| Conical Wheel Lock: Locking lug with conical seat. | |||
| Conical Wheel Lug: Lug nut with conical seat. | |||
| Conical Wheel Nut: Nut with conical seat. | |||
| Conical Wheel Ornament: Decorative conical wheel part. | |||
| Conical Wheel Retainer: Retainer with conical seat | |||
| Conical Wheel Spacer: Spacer with conical shape. | |||
| Conical Wheel Stud: Stud with conical seat. | |||
| Conical Wheel Trim: Trim with conical seat. | |||
| Conical Wheel Washer: Washer with conical shape. | |||
| Conk Out: Slang for an engine stalling or quitting unexpectedly. | |||
| Connectors (Electrical): Plugs and couplers joining wiring harnesses. | |||
| Connie: Slang for Kawasaki Concours sport‑tourer. | |||
| Conquistador Bike: Custom themed around Spanish conquistadors. | |||
| Conrod (Connecting Rod): Engine rod linking piston to crankshaft. | |||
| Conrod Bearing: Bearing at either end of connecting rod. | |||
| Conrod Big End: Lower end of connecting rod attached to crankshaft. | |||
| Conrod Bolt: Bolt securing connecting rod cap. | |||
| Conrod Failure: Engine failure due to broken connecting rod. | |||
| Conrod Journal: Crankshaft surface where connecting rod rides. | |||
| Conrod Kit: Replacement kit for connecting rods. | |||
| Conrod Knock: Engine knock from worn connecting rod bearings. | |||
| Conrod Rebuild: Overhaul of connecting rods. | |||
| Conrod Seizure: Connecting rod seizure due to lubrication failure. | |||
| Conrod Small End: Upper end of connecting rod attached to piston. | |||
| Conrod Stretch: Elongation of connecting rod under stress. | |||
| Conrod Upgrade: Performance connecting rod replacement. | |||
| Conrod Wear: Wear of connecting rod bearings or surfaces. | |||
| Conrod Wrist Pin Bearing: Bearing at piston end of connecting rod. | |||
| Conrod Wrist Pin Clip: Clip retaining wrist pin. | |||
| Conrod Wrist Pin Failure: Failure of wrist pin or bearing. | |||
| Conrod Wrist Pin Kit: Kit of wrist pin components. | |||
| Conrod Wrist Pin Seizure: Seizure at piston end of connecting rod. | |||
| Conrod Wrist Pin Wear: Wear at piston end of connecting rod. | |||
| Conrod Wrist Pin: Pin connecting piston to connecting rod. | |||
| Contact Breaker: Mechanical switch in older ignition systems that opens and closes to trigger spark. | |||
| Contact Patch: The portion of a tire actually touching the road surface. | |||
| Container Bike: Motorcycle shipped or stored in a container. | |||
| Continental Divide Ride: Long‑distance ride across the Continental Divide. | |||
| Continental Tires: Tire brand used on motorcycles. | |||
| Continuous Wave Radio: Early radio communication used by riders. | |||
| Contour Seat: Seat shaped to fit rider ergonomics. | |||
| Contract Patch: Club patch earned under specific conditions. | |||
| Control Cables: Throttle, clutch, and brake cables. | |||
| Control Freak: Rider obsessed with customizing controls. | |||
| Control Group Ride: Organized ride with designated leaders and sweepers. | |||
| Control Levers: Hand levers for clutch and brake. | |||
| Controller (ECU): Electronic unit controlling engine functions. | |||
| Conventional Forks: Standard telescopic front suspension. | |||
| Conventional Ignition: Older ignition system using points and condenser. | |||
| Conventional Oil: Mineral‑based engine oil. | |||
| Conventional Tire: Bias‑ply tire construction. | |||
| Converging Lines: Visual effect of road lines meeting at horizon. | |||
| Conversion Bike: Motorcycle converted from one style to another. | |||
| Convertible Helmet: Helmet with removable chin bar. | |||
| Coolant Overflow Tank: Reservoir for excess coolant. | |||
| Coolant: Liquid used in liquid‑cooled engines. | |||
| Cooler (Oil Cooler): Radiator‑like device cooling engine oil. | |||
| Coolie Bike: Slang for small, inexpensive commuter bike. | |||
| Cooling Fins: Metal fins on air‑cooled engines. | |||
| Cooling System: System regulating engine temperature. | |||
| Co‑Pilot: Passenger riding with the operator. | |||
| Copper Gasket: Gasket made of copper for sealing. | |||
| Copper Grease: Anti‑seize compound used on bolts. | |||
| Copperhead Bike: Custom motorcycle with copper accents. | |||
| Copycat Custom: Custom bike imitating another. | |||
| Core Plug (Freeze Plug): Plug sealing engine casting holes. | |||
| Corner Carving: Aggressive cornering on twisty roads. | |||
| Corner Marker: Roadside marker indicating curve. | |||
| Corner Speed: Speed maintained through a corner. | |||
| Corner Worker: Track official monitoring corners. | |||
| Cornering Clearance: Lean angle before parts scrape. | |||
| Cornering Lights: Lights that illuminate while leaning. | |||
| Cornering Line: Path taken through a corner. | |||
| Cornering Technique: Methods for safe and fast cornering. | |||
| Cornfield Run: Group ride through rural areas. | |||
| Corporate Bike: Motorcycle branded for corporate promotion. | |||
| Corrective Steering: Steering input to stabilize bike. | |||
| Corrosion Inhibitor: Additive preventing rust in coolant. | |||
| Corsa (Racing): Italian term for racing models. | |||
| Corsair Helmet: High‑end helmet model by Arai. | |||
| Cortech: Motorcycle gear and luggage brand. | |||
| Cosmetic Mods: Non‑functional modifications for appearance. | |||
| Costume Bike: Custom motorcycle built for show, not riding. | |||
| Cotter Pin: Pin securing nuts or bolts. | |||
| Counterbalance Shaft: Engine shaft reducing vibration. | |||
| Counterbalance: A weight or shaft used to offset engine vibration. | |||
| Counterbore: Machined recess for bolt heads. | |||
| Counterfeit Parts: Fake or imitation motorcycle parts. | |||
| Counterfeit Patch: Unauthorized reproduction of a motorcycle club patch. | |||
| Countershaft Bearing: Bearing supporting countershaft. | |||
| Countershaft Drive: Transmission shaft driving the front sprocket. | |||
| Countershaft Sprocket Cover: Protective cover over the front sprocket. | |||
| Countershaft Sprocket: Front sprocket on transmission shaft. | |||
| Countershaft: Transmission shaft driving front sprocket. | |||
| Countersteer: Steering technique where bars are pushed opposite the turn. | |||
| Countersteering: Technique of pushing the handlebar opposite the desired turn to initiate lean. | |||
| Counterweight: Weight balancing rotating parts. | |||
| Country Cruiser: Motorcycle designed for relaxed country rides. | |||
| Country Mile Ride: Long, scenic ride through rural areas. | |||
| Country Road Run: Group ride on rural roads. | |||
| County Line Rally: Group ride or event crossing county boundaries. | |||
| County Line Run: Ride crossing county boundaries. | |||
| Coupler Link (Chain): Link used to join two chain sections. | |||
| Coupler Link: Link connecting two chain sections. | |||
| Course Cone: Cone used to mark a training or racing course. | |||
| Course Layout: Design of a racetrack or training course. | |||
| Course Marker: Sign or cone marking race course. | |||
| Course Marshal: Official overseeing race course. | |||
| Course Worker: Volunteer assisting at a race or training event. | |||
| Course Worker: Volunteer assisting at races. | |||
| Court Jester Bike: Custom with humorous styling. | |||
| Court Jester Custom: Motorcycle styled with humorous or theatrical themes. | |||
| Coveralls (Riding Gear): One‑piece protective garment. | |||
| Coveralls: Protective one‑piece garment. | |||
| Covered Wagon Bike: Custom styled like a covered wagon. | |||
| Covered Wagon Custom: Motorcycle styled after a covered wagon. | |||
| Cow Catcher Fairing: Large front fairing resembling a train cow catcher. | |||
| Cow Horn Bars: Handlebars shaped like cow horns. | |||
| Cow Horn Handlebars: Handlebars shaped like cow horns. | |||
| Cowhide Leathers: Riding gear made from cowhide. | |||
| Cowl (General): Covering over part of a motorcycle, often aerodynamic. | |||
| Cowl Fairing Kit: Kit of fairing parts styled as cowls. | |||
| Cowl Induction Intake: Air intake through a raised cowl. | |||
| Cowl Induction: Air intake through a raised cowl. | |||
| Cowl Ornament Kit: Kit of decorative ornaments for cowls | |||
| Cowl Seat Cover: Cover for cowl‑style seat. | |||
| Cowl Seat Cowl: Seat integrated into a cowl design. | |||
| Cowl Tail Section: Tail section styled as a cowl. | |||
| Cowl Tail Section: Tail styled as a cowl. | |||
| Cowl Tank Cover: Cover for cowl‑styled fuel tank. | |||
| Cowl Tank Cover: Decorative or protective cover for a fuel tank. | |||
| Cowl Tip Ornament: Decorative tip for cowl. | |||
| Cowl Trim Kit: Kit of decorative trims for cowls. | |||
| Cowl Vent Kit: Kit of vents for cowls. | |||
| Cowl Vent: Ventilation opening in a cowl. | |||
| Cowl Wing Kit: Kit of wing‑like extensions for cowls. | |||
| Cowl Wing: Wing‑like extension of a cowl. | |||
| Cowl: Covering over part of a motorcycle. | |||
| Crab Bars: Handlebars angled like crab claws. | |||
| Crack‑Up: Slang for a crash. | |||
| Cradle Frame: Frame design with tubes surrounding the engine. | |||
| Crank Angle Sensor: Sensor detecting crankshaft position. | |||
| Crank Bearing: Bearing supporting crankshaft. | |||
| Crank Case: Engine housing containing crankshaft. | |||
| Crank End Float: Axial movement of crankshaft. | |||
| Crank Journal: Surface on crankshaft for bearings. | |||
| Crank Knock: Engine knock from worn crank bearings. | |||
| Crank Pin: Pin connecting crank webs. | |||
| Crank Seal: Seal preventing oil leaks at crankshaft ends. | |||
| Crank Web: Arm of crankshaft holding crank pin. | |||
| Crank: Short for crankshaft. | |||
| Crankcase Breather: Vent for crankcase gases. | |||
| Crankcase Pressure: Pressure inside crankcase. | |||
| Crankcase Vent Hose: Hose venting crankcase gases. | |||
| Crankpin Bearing: Bearing on crank pin. | |||
| Crankshaft Balancer: Device reducing crankshaft vibration. | |||
| Crankshaft Bearing: Bearing supporting crankshaft. | |||
| Crankshaft End Float: Axial movement of crankshaft. | |||
| Crankshaft Journal: Surface on crankshaft for bearings. | |||
| Crankshaft Seal: Seal preventing oil leaks at crankshaft ends. | |||
| Crankshaft Sprocket: Sprocket mounted on crankshaft. | |||
| Crankshaft Web: Arm of crankshaft holding crank pin. | |||
| Crankshaft: Engine shaft converting piston motion to rotation. | |||
| Crash Bar: Protective bar mounted to frame. | |||
| Crash Cage: Protective cage for stunt motorcycles. | |||
| Crash Dummy: Rider used for safety testing. | |||
| Crash Helmet: Helmet protecting rider’s head. | |||
| Crash Pad: Protective puck mounted to frame. | |||
| Crash Truck: Vehicle used to recover crashed bikes. | |||
| Crate Engine: Engine sold separately for installation. | |||
| Crate Motor: Alternate term for crate engine. | |||
| Crate Shovel: Harley‑Davidson Shovelhead crate engine. | |||
| Crater Run: Ride through cratered or rough terrain. | |||
| Crawl Gear: Very low gear for slow riding. | |||
| Crawler Bike: Motorcycle geared for very slow speeds. | |||
| Crazy Horse Bike: Custom themed after Native American imagery. | |||
| Crazy Ivan: Sudden, unpredictable maneuver. | |||
| Crazy Train Run: Group ride themed after Ozzy Osbourne’s “Crazy Train.” | |||
| Creamsicle Bike: Custom with orange and white paint. | |||
| Creation Run: Ride celebrating a new build. | |||
| Creative Customs: Shop or style emphasizing artistic builds. | |||
| Creeper Gear: Very low gear for crawling speeds. | |||
| Creeper Stand: Low mechanic’s stand for working under bikes. | |||
| Crescent Wrench: Adjustable wrench. | |||
| Crew Chief: Leader of a racing team. | |||
| Crew Patch: Patch identifying a rider’s crew. | |||
| Crib Bike: Small beginner’s motorcycle. | |||
| Crimson Ride: Group ride themed around red paint or gear. | |||
| Crinkle Finish: Textured paint finish. | |||
| Cripple Triple: Slang for Triumph Triple with issues. | |||
| Crispy Critter: Slang for a burned‑out motorcycle. | |||
| Critical Mass Ride: Large group ride through city streets. | |||
| Crooked Bars: Bent handlebars. | |||
| Cross Bar: Horizontal bar across handlebars. | |||
| Cross Bones: Harley‑Davidson Softail model. | |||
| Cross Brace: Reinforcing bar across handlebars. | |||
| Cross Country Ride: Long‑distance ride across a country. | |||
| Cross Drill Rotors: Brake rotors drilled for cooling. | |||
| Cross Frame: Frame with cross‑bracing. | |||
| Cross Member: Structural tube across frame. | |||
| Cross Over Exhaust: Exhaust pipes crossing sides. | |||
| Cross Patch: Patch earned for cross‑country ride. | |||
| Cross Roads Rally: Rally at crossroads or junction. | |||
| Cross Shaft: Shaft crossing frame or engine. | |||
| Cross Spoke Wheel: Wheel with spokes crossing each other. | |||
| Cross Wind: Wind blowing across rider’s path. | |||
| Crossbar Pad: Foam pad on handlebar crossbar. | |||
| Crossbones Patch: Patch featuring skull and crossbones. | |||
| Crossbreed Custom: Hybrid custom motorcycle. | |||
| Crosscut Seat: Seat with cross‑cut pattern. | |||
| Crossfire Ignition: Ignition system firing two plugs simultaneously. | |||
| Crosshair Headlight: Headlight with crosshair design. | |||
| Crossing Guard Ride: Ride escorting children or events. | |||
| Crosslink Chain: Chain with cross‑linked plates. | |||
| Crossover Gearbox: Gearbox with crossover shift pattern. | |||
| Crossroad Bike: Motorcycle designed for mixed use. | |||
| Crossroads Patch: Patch commemorating a crossroads rally. | |||
| Crown Wheel: Ring gear in a differential or final drive | |||
| Cruise Control: System maintaining constant speed automatically. | |||
| Cruiser: Motorcycle style emphasizing comfort and style, often with low seat and forward controls. | |||
| Crumb Catcher: Slang for a rider’s beard. | |||
| Crush Gasket: Soft metal gasket that deforms to seal exhaust joints. | |||
| Crush Washer: Washer that deforms to seal fluid fittings. | |||
| Crusty Bike: Old, weathered motorcycle. | |||
| Cry Baby Bike: Custom styled with exaggerated baby‑themed motifs. | |||
| Cryogenic Treatment: Process of freezing metal parts to increase strength. | |||
| Crystal Bike: Custom decorated with crystals. | |||
| Cub (Motorcycle): Small Honda commuter motorcycle (e.g., Super Cub). | |||
| Cubby Hole: Small storage compartment. | |||
| Cube (Engine Displacement): Slang for cubic centimeters or cubic inches. | |||
| Cubed Out: Slang for maximum engine displacement. | |||
| Cubic Capacity: Engine displacement measurement. | |||
| Cubic Inch (ci): Imperial measurement of engine displacement. | |||
| Cubic Inch Calculator: Tool for calculating cubic inch displacement. | |||
| Cubic Inch Chart: Chart showing cubic inch conversions. | |||
| Cubic Inch Conversion: Conversion between cubic inches and cubic centimeters. | |||
| Cubic Inch Displacement: Engine size measured in cubic inches. | |||
| Cubic Inch Engine: Engine specified by cubic inches. | |||
| Cubic Inch Formula: Formula for calculating cubic inches. | |||
| Cubic Inch Harley: Harley‑Davidson engine measured in cubic inches. | |||
| Cubic Inch Kit: Kit increasing engine displacement. | |||
| Cubic Inch Measurement: Measurement of engine displacement in cubic inches. | |||
| Cubic Inch Motor: Motor measured in cubic inches. | |||
| Cubic Inch Rating: Rating of engine size in cubic inches. | |||
| Cubic Inch Reference: Reference for cubic inch displacement. | |||
| Cubic Inch Spec: Specification of cubic inch displacement. | |||
| Cubic Inch Standard: Standard for cubic inch measurement. | |||
| Cubic Inch Table: Table of cubic inch values. | |||
| Cubic Inch Unit: Unit of cubic inch displacement. | |||
| Cubic Inch Upgrade: Upgrade increasing cubic inch displacement. | |||
| Cubic Inch Value: Value of engine displacement in cubic inches. | |||
| Cubic Inch Volume Measurement: Measurement of engine volume in cubic inches. | |||
| Cubic Inch Volume: Volume of engine displacement in cubic inches. | |||
