Published October 11, 2025 by Michael Le Pard , Editor‑in‑Chief
Total Motorcycle Bikers Dictionary
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Rat Bike – Bike made from several machines and kept on the road using as cheap as possible and painted matt black. Now has a class of its own and defined as any thing Mad Max would shoot at.
| R (Suffix) — Motorcycle designation suffix meaning Replica, Racer, or Racing (e.g., Yamaha YZF600R). | |||
| Race Boots — Protective boots designed for track use. | |||
| Race Brakes — High‑performance braking system for racing. | |||
| Race Can — Lightweight, free‑breathing muffler. | |||
| Race Clip‑Ons — Low handlebars for aggressive racing posture. | |||
| Race Day — The official day of a scheduled motorcycle race. | |||
| Race ECU — Engine control unit tuned for racing. | |||
| Race Entry — Registration for a sanctioned race. | |||
| Race Exhaust — Lightweight, free‑flowing exhaust for track use. | |||
| Race Fairing — Lightweight bodywork for racing. | |||
| Race Fuel — High‑octane fuel formulated for racing. | |||
| Race Gloves — Gloves with reinforced protection for racing. | |||
| Race Grid — Starting lineup positions on the track. | |||
| Race Helmet — Helmet certified for track competition. | |||
| Race Helmet — Helmet certified for track use. | |||
| Race Line — Optimal path through a corner on track. | |||
| Race Marshal — Official ensuring safety and flag communication. | |||
| Race Number — Rider’s official competition number. | |||
| Race Pace — The consistent lap speed a rider can maintain in competition. | |||
| Race Pit — Area for mechanics and crew during races. | |||
| Race Podium — Ceremony for the top three finishers. | |||
| Race Prep — Preparing a bike for competition. | |||
| Race Prep Bike — Motorcycle modified specifically for track use. | |||
| Race Rearsets — Adjustable foot controls for racing ergonomics. | |||
| Race Replica — Production bike styled after race machines. | |||
| Race School — Training program for aspiring racers. | |||
| Race Season — Annual calendar of organized motorcycle races. | |||
| Race Series — Championship consisting of multiple races. | |||
| Race Spec — Components or setup built to racing standards. | |||
| Race Start — Beginning of a race event. | |||
| Race Stop — Halted race, often due to red flag. | |||
| Race Suit — One‑piece leather suit for racing. | |||
| Race Suspension — Suspension optimized for track performance. | |||
| Race Team — Organized group competing in races. | |||
| Race Tech — Aftermarket suspension tuning company. | |||
| Race Tire — Tire designed for track use only. | |||
| Race Track — Closed course for motorcycle racing. | |||
| Race Tune — Engine or ECU tune optimized for racing. | |||
| Race Weekend — Multi‑day racing event. | |||
| Race Win — Victory in a race. | |||
| Racecraft — Strategic skill of managing lines, braking, and overtakes in competition. | |||
| Racer — Licensed competitor in motorcycle racing. | |||
| Racing Flags — Standardized flags used to communicate with racers. | |||
| Racing Leathers — One‑piece or two‑piece leather suit for racing. | |||
| Racing License — Certification to compete in sanctioned races. | |||
| Racing Line — Optimal path through a corner on track. | |||
| Racing Number — Rider’s official competition number. | |||
| Racing Pit — Area for mechanics and crew during races. | |||
| Racing Podium — Ceremony for the top three finishers. | |||
| Racing Season — Annual calendar of organized motorcycle races. | |||
| Racing Series — Championship consisting of multiple races. | |||
| Racing Start — Beginning of a race event. | |||
| Racing Stop — Halted race, often due to red flag. | |||
| Racing Suit — One‑piece leather suit for track use. | |||
| Racing Team — Organized group competing in races. | |||
| Racing Tire — Tire designed for track use. | |||
| Racing Tune — Engine or ECU tune optimized for racing. | |||
| Racing Weekend — Multi‑day racing event. | |||
| Racing Win — Victory in a race. | |||
| Racing Workshop — Shop specializing in race bike prep. | |||
| Racing Zone — Section of track designated for racing. | |||
| Rack — Luggage carrier mounted on the rear or side of a motorcycle. | |||
| Rack — Luggage carrier mounted on the rear or side. | |||
| Rack Bag — Bag designed to fit securely on a luggage rack. | |||
| Rack Mount — Hardware used to attach luggage racks. | |||
| Radial Brake Caliper — Caliper mounted radially for improved stiffness. | |||
| Radial Construction — Tire construction with plies running bead to bead radially. | |||
| Radial Master Cylinder — Brake master cylinder with radial piston alignment. | |||
| Radial Mount — Brake caliper mounting style improving rigidity. | |||
| Radial Pump — Master cylinder with radial piston design. | |||
| Radial Tire — Tire with cords running bead to bead radially, stabilized by belts. | |||
| Radiator — Heat exchanger in liquid‑cooled engines. | |||
| Radiator Cap — Pressure cap maintaining coolant system pressure. | |||
| Radiator Fan — Fan assisting coolant flow through radiator. | |||
| Rain Boots — Waterproof over‑boots for wet riding. | |||
| Rain Gloves — Waterproof gloves for wet riding. | |||
| Rain Grooves — Channels cut into pavement to improve water runoff. | |||
| Rain Suit — Waterproof riding suit for wet conditions. | |||
| Rainbows — Oil slicks on the street. | |||
| Rainbows in the Mountains — Diesel deliberately spilled in corners to deter sportbikes. | |||
| Raised Tranny — Harley mod raising transmission to protect primary in dirt/mud. | |||
| Rake — Angle of front fork/steering axis, measured in degrees. | |||
| Rake Adjustment — Altering rake to change handling. | |||
| Rake Angle — Measurement of fork angle in degrees. | |||
| Rally — Organized motorcycle gathering or event. | |||
| Rally Bike — Motorcycle prepared for long‑distance rally racing. | |||
| Rally Raid — Long‑distance off‑road rally competition. | |||
| Rally Stage — Section of a rally course. | |||
| Rally Support — Crew providing assistance during rallies. | |||
| Rally Trophy — Award given at a rally. | |||
| Rallycross — Off‑road racing on mixed surfaces. | |||
| Rallye — European spelling for rally, often used in event names. | |||
| Rallye Raid — Alternate spelling for rally raid competition. | |||
| Ram Air — Intake system using forward motion to pressurize airbox. | |||
| Ram Air Duct — Duct channeling air into the intake system. | |||
| Ram Air Effect — Power increase from ram air at speed. | |||
| Ramp — Inclined surface used to load motorcycles onto trailers or trucks. | |||
| Ramp Angle — The slope angle of a loading ramp. | |||
| Ramp Truck — Vehicle with built‑in ramp for transporting motorcycles. | |||
| Range — Distance a motorcycle can travel on a full tank. | |||
| Range Anxiety — Concern about running out of fuel or charge. | |||
| Range Extender — Auxiliary fuel tank or battery pack. | |||
| Rangefinder — Device measuring distance, sometimes used in rally navigation. | |||
| Ranger Patch — Patch signifying ranger‑led ride participation. | |||
| Ranger Ride — Guided ride led by park or forest rangers. | |||
| Rapid Shift — Fast gear change. | |||
| Rapid Throttle — Quick‑turn throttle tube. | |||
| Rapid Transit — Slang for very fast motorcycles. | |||
| Rat Bike — Motorcycle kept running cheaply, often rough‑looking. | |||
| Rat Bike (Cosmetic) — Rough‑looking but mechanically sound “sleeper.” | |||
| Rat Bike (Utility) — Cheap, reliable bike for foul weather or risky areas. | |||
| Rat Pack — Group of riders on rat bikes. | |||
| Rat Rod (Bike) — Custom motorcycle built with raw, unfinished style. | |||
| Ratchet Helmet — Helmet with ratcheting chin strap. | |||
| Ratchet Lock — Locking mechanism on a strap or helmet. | |||
| Ratchet Mechanism — Locking mechanism in helmets or gear. | |||
| Ratchet Strap — Tie‑down strap with ratcheting mechanism. | |||
| Ratchet Tie‑Down — Securing strap for transporting motorcycles. | |||
| Ratchet Wrench — Tool used in motorcycle maintenance. | |||
| Rated Load — Maximum weight capacity. | |||
| Rated Output — Manufacturer’s stated horsepower or torque. | |||
| Rated Speed — Maximum safe operating speed. | |||
| Rating Plate — Plate showing rated specifications. | |||
| Rating Standard — Official standard for ratings. | |||
| Rating Sticker — Sticker showing rated specifications. | |||
| Raw Finish — Unpainted or bare metal motorcycle finish. | |||
| Raw Frame — Frame left unpainted for custom builds. | |||
| Raw Tank — Fuel tank left unpainted. | |||
| Ray Gun Exhaust — Custom exhaust resembling a ray gun. | |||
| Ray Gun Pipes — Exhaust pipes styled like ray guns. | |||
| Ray Gun Style — Custom style using ray gun motifs. | |||
| Reach — Distance from rider’s seat to handlebars. | |||
| Reach Bars — Handlebars designed for extended reach and comfort. | |||
| Reach Seat — Seat designed to bring the rider closer to the bars and ground, improving ergonomics for shorter riders. | |||
| Reach Suspension — Lowered suspension setup to reduce seat height and increase reach. | |||
| Reaction Drill — Practice drill for emergency maneuvers. | |||
| Reaction Test — Training exercise to improve rider reflexes. | |||
| Reaction Time — Time between start signal and rider’s launch. | |||
| Reactor Box — Housing for emissions reactor components. | |||
| Reactor Core — Slang for catalytic converter in exhaust. | |||
| Reactor Exhaust — Emissions system component reducing pollutants. | |||
| Reading the Plugs — Examining spark plugs to judge fuel/air mixture. | |||
| Readout — Display of information on gauges or digital screens. | |||
| Readout Cluster — Instrument cluster showing multiple readouts. | |||
| Readout Display — Digital or analog display of motorcycle data. | |||
| Ready Light — Indicator showing motorcycle is prepared to start or ride. | |||
| Ready Mode — Electronic state in EV motorcycles indicating readiness to move. | |||
| Ready Position — Standard riding posture with knees gripping tank, elbows bent, eyes forward. | |||
| Rear Axle — Shaft connecting the rear wheel to the swingarm. | |||
| Rear Axle Nut — Nut securing the rear axle. | |||
| Rear Axle Stand — Stand lifting the rear wheel for maintenance. | |||
| Rear Brake — Brake system controlling the rear wheel. | |||
| Rear Brake Line — Hydraulic line connecting rear brake components. | |||
| Rear End — Rear wheel and swingarm assembly. | |||
| Rear Fender — Bodywork covering the rear wheel. | |||
| Rear Fender Eliminator — Aftermarket kit removing bulky stock fender. | |||
| Rear Fender Extension — Added piece to extend splash protection. | |||
| Rear Master Cylinder — Hydraulic cylinder operating the rear brake. | |||
| Rear Reservoir — Fluid reservoir for rear brake. | |||
| Rear Sets — Foot controls relocated rearward for sport riding. | |||
| Rear Shock — Suspension unit for the rear wheel. | |||
| Rear Shock Linkage — Linkage connecting shock to swingarm. | |||
| Rear Shock Reservoir — External reservoir for rear shock fluid. | |||
| Rear Sprocket — Gear mounted on the rear wheel. | |||
| Rear Sprocket Bolts — Bolts securing sprocket to carrier. | |||
| Rear Sprocket Carrier — Hub holding the rear sprocket. | |||
| Rear Tire — Tire mounted on the rear wheel. | |||
| Rear Tire Hugger — Fender close to the rear tire. | |||
| Rear Tire Warmers — Electric wraps pre‑heating race tires. | |||
| Rear View Camera — Camera system replacing mirrors. | |||
| Rear View Display — Screen showing rear camera feed. | |||
| Rear View Mirror — Mirror showing traffic behind. | |||
| Rebound — Return stroke of suspension after compression. | |||
| Rebound — Suspension’s return stroke after compression. | |||
| Rebound Adjustment — Tuning rebound damping for handling. | |||
| Rebound Damping — Control of suspension rebound speed. | |||
| Rebuild — Complete overhaul of an engine or motorcycle. | |||
| Rebuild Kit — Set of parts for engine or carburetor rebuild. | |||
| Rebuild Shop — Workshop specializing in motorcycle rebuilds. | |||
| Recall — Manufacturer’s notice to repair a defect. | |||
| Recall Campaign — Organized recall effort. | |||
| Recall Notice — Official notification of a recall. | |||
| Reciprocating Weight — Total weight of moving engine parts. | |||
| Record Book — Official listing of motorcycle records. | |||
| Record Holder — Rider or bike holding a record. | |||
| Record Run — Attempt to set a speed or distance record. | |||
| Recovery Service — Roadside assistance for motorcycles. | |||
| Recovery Strap — Strap used to tow a motorcycle. | |||
| Recovery Truck — Vehicle used to recover broken motorcycles. | |||
| Rectifier — Converts AC to DC in motorcycle electrics. | |||
| Red Flag — Race stopped. | |||
| Redline — Maximum safe engine RPM, marked on tachometer. | |||
| Redline Shift — Shifting gears at maximum RPM. | |||
| Redline Zone — Tachometer area marking unsafe RPM. | |||
| Reduced Effect — Restricted horsepower version to meet legal/insurance limits. | |||
| Reed Block — Assembly holding reed valves. | |||
| Reed Petal — Flexible component of a reed valve. | |||
| Reed Valve — One‑way valve in two‑stroke engines. | |||
| Reflective Tape — Adhesive tape increasing visibility. | |||
| Reflective Vest — High‑visibility vest for safety. | |||
| Reflector — Passive device reflecting light for visibility. | |||
| Refuel — Adding fuel to a motorcycle. | |||
| Refuel Can — Container used to add fuel. | |||
| Refuel Stop — Pit stop for refueling. | |||
| Regeneration — Energy recovery process in electric motorcycles, converting braking energy into stored charge. | |||
| Regenerative Braking — System in electric bikes that slows the motorcycle while recharging the battery. | |||
| Regenerative Mode — Riding mode emphasizing maximum energy recovery. | |||
| Regenerative Mode — Riding mode emphasizing regeneration. | |||
| Registration — Legal documentation proving motorcycle ownership. | |||
| Registration Plate — License plate issued by authorities. | |||
| Registration Sticker — Adhesive decal validating motorcycle registration period. | |||
| Regulator — Controls voltage output from alternator. | |||
| Regulator Fault — Failure causing charging issues. | |||
| Regulator/Rectifier — Combined unit for charging system. | |||
| Reinforced Frame — Frame strengthened with gussets or bracing for durability. | |||
| Reinforced Swingarm — Swingarm upgraded for stiffness and stability. | |||
| Relay — Electrical switch using low current to control high current. | |||
| Relay Box — Housing for multiple relays. | |||
| Relay Harness — Wiring harness connecting relays to circuits. | |||
| Release Bearing — Clutch component reducing friction during disengagement. | |||
| Release Cable — Cable operating clutch release mechanism. | |||
| Release Lever — Lever actuating clutch release. | |||
| Remap — ECU reprogramming for performance or efficiency. | |||
| Remap Shop — Workshop specializing in ECU remapping. | |||
| Remap Tune — Specific ECU tune optimized for conditions. | |||
| Remote Adjuster — Device allowing suspension adjustment while riding. | |||
| Remote Reservoir — External fluid reservoir for brakes or suspension. | |||
| Remote Start — System enabling engine start remotely. | |||
| Renthal — Aftermarket parts maker, known for handlebars and sprockets. | |||
| Repair Link — Chain link designed for disassembly/repair. | |||
| Repli‑Racer — Hard‑edged sportbike mimicking race machines. | |||
| Repo — Repossession of a motorcycle for non‑payment. | |||
| Repo Artist — Specialist in repossessing motorcycles. | |||
| Repo Auction — Auction of repossessed motorcycles. | |||
| Repo Buyer — Person purchasing repossessed bikes. | |||
| Repo Lot — Storage yard for repossessed bikes. | |||
| Repo Title — Title transferred from repossession. | |||
| Resistor — Electrical component limiting current flow. | |||
| Resistor Plug — Spark plug with built‑in resistor. | |||
| Resistor Wire — Wire with resistance built in. | |||
| Restoration — Returning a motorcycle to original condition. | |||
| Restoration Award — Prize for best restored motorcycle. | |||
| Restoration Shop — Workshop specializing in restorations. | |||
| Restricted Bike — Motorcycle limited in power output. | |||
| Restricted License — License with limitations (e.g., engine size, power). | |||
| Restricted Mode — ECU mode limiting performance. | |||
| Retainer — Component holding another part in place. | |||
| Retainer Clip — Clip securing a component. | |||
| Retainer Spring — Spring acting as a retainer. | |||
| Retard (Ignition) — Setting ignition timing later, before TDC. | |||
| Retard Lever — Manual control for ignition timing. | |||
| Retard Timing — Adjusting spark to occur later. | |||
| Return Line — Hose returning fluid to reservoir. | |||
| Return Port — Hydraulic port for fluid return. | |||
| Return Spring — Spring returning lever or pedal. | |||
| Rev — Informal for engine revolutions per minute. | |||
| Rev Counter — Tachometer measuring engine RPM. | |||
| Rev Limiter — Device preventing engine from exceeding safe RPM. | |||
| Rev Match — Throttle blip to match revs during downshifting. | |||
| Reverse Gear — Gear enabling backward motion. | |||
| Reverse Switch — Switch activating reverse gear. | |||
| Reverse Trike — Three‑wheeled motorcycle with two wheels in front. | |||
| Revolution Max — Harley’s modern liquid‑cooled engine platform powering Pan America and Sportster S. | |||
| Revolution X — Smaller displacement liquid‑cooled Harley engine used in Street models. | |||
| Revolution® Engine — Harley‑Davidson’s first water‑cooled V‑Twin, introduced in 2002 on the V‑Rod. | |||
| Revolutions per Mile — Tire revolutions required to travel one mile. | |||
| Revving — Blipping throttle in short bursts. | |||
| Ribbed Seat — Seat with ribbed stitching for grip and style. | |||
| Ribbed Tank — Fuel tank with ribbed styling. | |||
| Ribbed Tire — Tire with longitudinal grooves for stability. | |||
| Rice Burner — Slang for Japanese motorcycle. | |||
| Rice Grinder — Slang for Japanese motorcycles. | |||
| Rice Rocket — Japanese sportbike. | |||
| Rich (Mixture) — Too much fuel, not enough air. | |||
| Rich Burn — Fuel‑air mixture with excess fuel. | |||
| Rich Condition — Engine running with excess fuel. | |||
| Ride Captain — Leader of a group ride. | |||
| Ride Height — Vertical distance from ground to chassis. | |||
| Ride Height Adjuster — Device altering ride height. | |||
| Ride Height Sensor — Sensor measuring suspension height. | |||
| Ride Lieutenant — Experienced rider at the back of a group ride. | |||
| Ride Mode — Electronic setting altering power delivery. | |||
| Ride Mode Display — Screen showing active ride mode. | |||
| Ride Mode Switch — Switch selecting ride modes. | |||
| Ride Off Stand — Center stand that retracts automatically when the bike is pushed forward. | |||
| Ride Out — Organized group ride, often informal and scenic. | |||
| Ride Sharing — Informal arrangement where multiple riders share a motorcycle or trip. | |||
| Ride Sweep — Rider at the rear ensuring group safety. | |||
| Rider — General term for a motorcyclist. | |||
| Rider ABS — Anti‑lock braking system. | |||
| Rider ABS System — Anti‑lock braking system. | |||
| Rider Advocacy — Organized efforts to defend or expand rider rights. | |||
| Rider Advocacy Event — Event supporting rider rights. | |||
| Rider Advocacy Group — Organization lobbying for rider rights. | |||
| Rider Aid — Electronic system assisting the rider (ABS, traction control). | |||
| Rider Airbag — Airbag vest or jacket. | |||
| Rider Armor — Protective armor inserts. | |||
| Rider Arrest — Legal detention of a motorcyclist for a traffic or criminal offense. | |||
| Rider Arrest Record — Record of motorcycle‑related arrest. | |||
| Rider Assist — Electronic or mechanical system aiding rider control. | |||
| Rider Award — Recognition for riding achievement. | |||
| Rider Awards — Prizes given at motorcycle events. | |||
| Rider Balance — Rider’s ability to maintain equilibrium. | |||
| Rider Boots — Protective boots. | |||
| Rider Brotherhood — Fellowship among riders. | |||
| Rider Brotherhood Patch — Patch symbolizing fellowship. | |||
| Rider Campaign — Organized effort to influence laws or awareness. | |||
| Rider Campaign Event — Event supporting rider issues. | |||
| Rider Campaign Rally — Rally supporting rider issues. | |||
| Rider Certificate — Proof of training completion. | |||
| Rider Certificate Award — Award for training completion. | |||
| Rider Claim — Insurance claim filed for motorcycle damage or injury. | |||
| Rider Claim Process — Process of filing an insurance claim. | |||
| Rider Club — Motorcycle club centered on riding. | |||
| Rider Coach — Certified instructor in Motorcycle Safety Foundation (MSF) programs. | |||
| Rider Community — General community of motorcyclists. | |||
| Rider Community Patch — Patch symbolizing rider community. | |||
| Rider Confidence — Rider’s trust in their skills and machine. | |||
| Rider Contest — Competition involving motorcycles. | |||
| Rider Cornering ABS — ABS optimized for cornering. | |||
| Rider Cornering System — Cornering ABS system. | |||
| Rider Course — Structured training program. | |||
| Rider Court — Court proceedings involving a motorcycle violation. | |||
| Rider Court Case — Court case involving a rider. | |||
| Rider Cruise Control — Electronic throttle hold. | |||
| Rider Cruise System — Cruise control system. | |||
| Rider Error — Mistake made by the operator. | |||
| Rider Event — Organized motorcycle event. | |||
| Rider Exam — Licensing test for motorcyclists. | |||
| Rider Fatigue — Physical or mental tiredness reducing riding ability. | |||
| Rider Festival — Large motorcycle gathering. | |||
| Rider Fine — Penalty for traffic violation. | |||
| Rider Freedom — Expression of independence through riding. | |||
| Rider Freedom Patch — Patch symbolizing independence. | |||
| Rider Games — Skill games at rallies. | |||
| Rider Gear — Protective clothing and equipment. | |||
| Rider Gloves — Protective gloves. | |||
| Rider Helmet — Protective headgear. | |||
| Rider Heritage — Historical aspects of motorcycling. | |||
| Rider Icon — Rider symbolic of motorcycling. | |||
| Rider Icon Patch — Patch symbolizing iconic riders. | |||
| Rider Input — Steering, throttle, and brake actions from the rider. | |||
| Rider Insurance — Insurance policy covering motorcycles and riders. | |||
| Rider Insurance Policy — Insurance policy for motorcyclists. | |||
| Rider Jacket — Protective jacket. | |||
| Rider Journal — Personal diary of rides. | |||
| Rider Journal Entry — Entry in a rider’s diary. | |||
| Rider Launch Control — System optimizing starts. | |||
| Rider Launch System — Launch control system. | |||
| Rider Law — Legal statutes governing motorcycle operation. | |||
| Rider Law Statute — Legal statute governing motorcycles. | |||
| Rider Legacy — Lasting impact of motorcycling culture. | |||
| Rider Legend — Famous rider or tale. | |||
| Rider Legend Patch — Patch commemorating a legendary rider. | |||
| Rider License — Legal certification to operate a motorcycle. | |||
| Rider License Test — Test for motorcycle license. | |||
| Rider Lifestyle — Culture and identity centered on motorcycles. | |||
| Rider Lifestyle Patch — Patch symbolizing motorcycle lifestyle. | |||
| Rider Lobby — Group lobbying for motorcyclist rights. | |||
| Rider Lobby Group — Group lobbying for motorcyclist rights. | |||
| Rider Log — Record of rides taken. | |||
| Rider Mentor — Experienced rider guiding others. | |||
| Rider Mentor Patch — Patch symbolizing mentorship. | |||
| Rider Mileage — Total miles ridden. | |||
| Rider Mileage Log — Record of miles ridden. | |||
| Rider Pants — Protective trousers. | |||
| Rider Parade — Organized parade of motorcycles. | |||
| Rider Patch — Patch signifying rider identity. | |||
| Rider Patch Set — Collection of patches earned. | |||
| Rider Permit — Temporary authorization to ride. | |||
| Rider Permit Test — Test for motorcycle permit. | |||
| Rider Petition — Formal request supporting rider issues. | |||
| Rider Petition — Petition supporting rider rights. | |||
| Rider Petition Drive — Organized petition campaign. | |||
| Rider Pin Set — Collection of pins earned. | |||
| Rider Position — Posture adopted while riding. | |||
| Rider Premium — Cost of motorcycle insurance coverage. | |||
| Rider Premium Cost — Cost of motorcycle insurance. | |||
| Rider Protest — Demonstration by motorcyclists for rights or safety. | |||
| Rider Protest March — March supporting rider rights. | |||
| Rider Quickshift System — Quickshifter system. | |||
| Rider Quickshifter — Device enabling clutchless shifts. | |||
| Rider Rally — Gathering of riders. | |||
| Rider Record — Documented achievement by a rider. | |||
| Rider Record Book — Documented riding achievements. | |||
| Rider Rights — Legal protections afforded to motorcyclists. | |||
| Rider Rights Rally — Rally supporting rider rights. | |||
| Rider Safety — Practices to reduce risk. | |||
| Rider Safety Airbag — Airbag vest or jacket. | |||
| Rider Safety Armor — Armor inserts for protection. | |||
| Rider Safety Award — Recognition for safe riding practices. | |||
| Rider Safety Boots — Boots designed for protection. | |||
| Rider Safety Course — Training program emphasizing safe riding. | |||
| Rider Safety Gear — Protective gear for safe riding. | |||
| Rider Safety Gloves — Gloves designed for protection. | |||
| Rider Safety Helmet — Helmet certified for safety. | |||
| Rider Safety Jacket — Jacket designed for protection. | |||
| Rider Safety Pants — Pants designed for protection. | |||
| Rider Safety Patch — Patch signifying safety training completion. | |||
| Rider Safety Suit — Suit designed for protection. | |||
| Rider Show — Motorcycle exhibition. | |||
| Rider Sisterhood — Fellowship among female riders. | |||
| Rider Sisterhood Patch — Patch symbolizing female fellowship. | |||
| Rider Skill — Level of ability in handling a motorcycle. | |||
| Rider Spirit — Enthusiasm and passion for motorcycling. | |||
| Rider Spirit Patch — Patch symbolizing passion for riding. | |||
| Rider Stability Control — System enhancing stability. | |||
| Rider Stability System — Stability control system. | |||
| Rider Story — Anecdote about a ride. | |||
| Rider Storytelling — Sharing anecdotes about rides. | |||
| Rider Suit — Protective suit. | |||
| Rider Tech — Electronic aids for safety. | |||
| Rider Tech Airbag — Airbag with integrated electronics. | |||
| Rider Tech Armor — Armor with integrated electronics. | |||
| Rider Tech Boots — Boots with integrated electronics. | |||
| Rider Tech Gear — Electronic gear for safety. | |||
| Rider Tech Gloves — Gloves with integrated electronics. | |||
| Rider Tech Helmet — Helmet with integrated electronics. | |||
| Rider Tech Jacket — Jacket with integrated electronics. | |||
| Rider Tech Pants — Pants with integrated electronics. | |||
| Rider Tech Suit — Suit with integrated electronics. | |||
| Rider Ticket — Citation for traffic violation. | |||
| Rider Ticket Fine — Fine for traffic violation. | |||
| Rider Title — Legal ownership document. | |||
| Rider Title Document — Legal ownership document. | |||
| Rider Traction Control — Electronic system preventing wheel slip. | |||
| Rider Traction System — Traction control system. | |||
| Rider Tradition — Long‑standing customs in motorcycling. | |||
| Rider Training — Formal instruction for motorcyclists. | |||
| Rider Triangle — Ergonomic relationship between seat, bars, and pegs. | |||
| Rider Trophy — Prize given at a riding event. | |||
| Rider Trophy Case — Collection of awards. | |||
| Rider Violation — Breaking traffic laws while riding. | |||
| Rider Violation Record — Record of traffic violations. | |||
| Ridge Frame — Frame design with a central ridge for strength. | |||
| Ridge Seat — Seat with a raised ridge for rider support. | |||
| Ridge Tank — Fuel tank with a central ridge for styling. | |||
| Riding ABS — Anti‑lock braking system. | |||
| Riding Advocacy — Efforts to protect rider rights. | |||
| Riding Airbag — Airbag vest or jacket. | |||
| Riding Armor — Protective armor inserts. | |||
| Riding Arrest — Arrest for motorcycle‑related offense. | |||
| Riding Awards — Prizes given at motorcycle events. | |||
| Riding Boots — Protective boots designed for motorcycling. | |||
| Riding Brotherhood — Fellowship among riders. | |||
| Riding Buddy — Companion who rides with you. | |||
| Riding Campaign — Organized effort for rider issues. | |||
| Riding Certificate — Proof of training completion. | |||
| Riding Chapter — Local branch of a riding club. | |||
| Riding Charter — Founding document of a riding club. | |||
| Riding Claim — Insurance claim for motorcycle damage. | |||
| Riding Club — Motorcycle club focused on social riding. | |||
| Riding Clubhouse — Meeting place for a riding club. | |||
| Riding Community — General community of motorcyclists. | |||
| Riding Contest — Competition involving motorcycles. | |||
| Riding Cornering ABS — ABS optimized for cornering. | |||
| Riding Court — Court case involving a rider. | |||
| Riding Cruise Control — Electronic throttle hold. | |||
| Riding Error — Mistake made while riding. | |||
| Riding Etiquette — Accepted rules of group riding. | |||
| Riding Exam — Practical or written motorcycle test. | |||
| Riding Festival — Large motorcycle gathering. | |||
| Riding Fine — Penalty for traffic violation. | |||
| Riding Formation — Group riding arrangement for safety. | |||
| Riding Freedom — Expression of independence through riding. | |||
| Riding Games — Skill games at rallies. | |||
| Riding Gear — Protective clothing and equipment. | |||
| Riding Gear — Protective clothing for motorcyclists. | |||
| Riding Gloves — Gloves designed for grip and protection. | |||
| Riding Gloves — Protective gloves. | |||
| Riding Graduate — Rider who completed training. | |||
| Riding Group — Organized set of riders traveling together. | |||
| Riding Guide — Rider leading a tour or group. | |||
| Riding Hazard — Road condition dangerous to riders. | |||
| Riding Helmet — Protective headgear. | |||
| Riding Heritage — Historical aspects of motorcycling. | |||
| Riding Hero — Rider admired for skill or bravery. | |||
| Riding Icon — Rider or bike symbolic of motorcycling. | |||
| Riding Instructor — Person certified to teach motorcycling. | |||
| Riding Insurance — Insurance policy for motorcyclists. | |||
| Riding Jacket — Protective jacket, leather or textile. | |||
| Riding Jacket — Protective jacket. | |||
| Riding Journal — Personal diary of rides. | |||
| Riding Launch Control — System optimizing starts. | |||
| Riding Law — Legal statutes governing motorcycles. | |||
| Riding Leathers — Leather jacket and pants worn for protection. | |||
| Riding Legacy — Lasting impact of motorcycling culture. | |||
| Riding Legend — Famous rider or tale. | |||
| Riding License — Legal certification to operate a motorcycle. | |||
| Riding License Plate — Plate issued for motorcycles. | |||
| Riding Lifestyle — Culture and identity centered on motorcycles. | |||
| Riding Lights — Auxiliary lights for visibility. | |||
| Riding Lobby — Group lobbying for rider issues. | |||
| Riding Log — Record of rides taken. | |||
| Riding Map — Map designed for motorcyclists. | |||
| Riding Mentor — Experienced rider guiding others. | |||
| Riding Mileage — Total miles ridden. | |||
| Riding Pants — Protective trousers, often armored. | |||
| Riding Parade — Organized parade of motorcycles. | |||
| Riding Patch — Patch signifying membership in a riding club. | |||
| Riding Patch Set — Collection of patches earned. | |||
| Riding Permit — Temporary authorization to ride. | |||
| Riding Petition — Petition supporting rider rights. | |||
| Riding Pin Set — Collection of pins earned. | |||
| Riding Position — Posture of the rider on the motorcycle. | |||
| Riding Position — Rider’s posture on the motorcycle. | |||
| Riding Premium — Cost of motorcycle insurance. | |||
| Riding Protest — Demonstration by motorcyclists. | |||
| Riding Quickshifter — Device enabling clutchless shifts. | |||
| Riding Rally — Organized event for riders. | |||
| Riding Rally Award — Award given at a rally. | |||
| Riding Rally Patch — Patch commemorating a rally. | |||
| Riding Rally Pin — Pin commemorating a rally. | |||
| Riding Record — Documented riding achievement. | |||
| Riding Registration — Legal registration of a motorcycle. | |||
| Riding Rights — Legal rights of motorcyclists. | |||
| Riding Risk — General risk associated with motorcycling. | |||
| Riding Route — Planned path for a motorcycle ride. | |||
| Riding Safety — Practices to reduce risk. | |||
| Riding School — Training program for new or advanced riders. | |||
| Riding Season — Time of year suitable for motorcycling. | |||
| Riding Show — Motorcycle exhibition. | |||
| Riding Signal — Hand or light signal used in group riding. | |||
| Riding Sisterhood — Fellowship among female riders. | |||
| Riding Spirit — Enthusiasm and passion for motorcycling. | |||
| Riding Stability Control — System enhancing stability. | |||
| Riding Story — Anecdote about a ride. | |||
| Riding Student — Learner in a motorcycle course. | |||
| Riding Student Patch — Patch for completing training. | |||
| Riding Style — Characteristic way a rider handles a motorcycle. | |||
| Riding Suit — One‑piece or two‑piece protective outfit. | |||
| Riding Suit — Protective suit. | |||
| Riding Tech — Electronic aids for safety. | |||
| Riding Test — Exam required to obtain a license. | |||
| Riding Ticket — Citation for traffic violation. | |||
| Riding Title — Legal ownership document. | |||
| Riding Tour — Long‑distance motorcycle trip. | |||
| Riding Traction Control — Electronic system preventing wheel slip. | |||
| Riding Tradition — Long‑standing customs in motorcycling. | |||
| Riding Trophy — Award for riding achievement. | |||
| Riding Two‑Up — Carrying a passenger. | |||
| Riding Violation — Breaking traffic laws while riding. | |||
| Riding Weather — Conditions favorable for motorcycling. | |||
| Rigid Chopper — Custom chopper with no rear suspension. | |||
| Rigid Frame — Frame with no rear suspension. | |||
| Rigid Mount — Engine mounted directly to frame. | |||
| Rim — Outer edge of a wheel holding the tire. | |||
| Rim Lock — Device clamping tire bead to rim, common in off‑road bikes. | |||
| Rim Strip — Protective band covering spoke nipples inside the rim. | |||
| Ring Compressor — Tool compressing piston rings for installation. | |||
| Ring Gear — Gear encircling a clutch or flywheel. | |||
| Ring Set — Complete set of piston rings. | |||
| Rip Session — Informal term for aggressive riding. | |||
| Rip Start — Quick, aggressive launch. | |||
| Rip Strip — Slang for a long, fast ride. | |||
| Rippin’ It Up — Aggressive, fast riding or burnouts. | |||
| Rise and Ride — Early morning motorcycle ride. | |||
| Rise Bars — Handlebars with upward bend for comfort. | |||
| Rise Seat — Seat with a step‑up design for passenger support. | |||
| Riser Bolts — Bolts securing risers to triple tree. | |||
| Riser Bushings — Rubber or polyurethane mounts for risers. | |||
| Risers — Handlebar mounts raising bars for ergonomics. | |||
| Risers — Handlebar mounts raising bars. | |||
| Risk Assessment — Evaluating hazards before or during a ride. | |||
| Risk Factor — Element increasing riding danger. | |||
| Risk Management — Strategies to reduce riding risks. | |||
| Rivet Link — Permanent chain link installed with rivet tool. | |||
| Rivet Patch — Patch secured with rivets, often on leather gear. | |||
| Rivet Tool — Tool used to install rivet‑type chain links. | |||
| Road Adventure — Informal term for extended motorcycle travel. | |||
| Road Agent — Slang for highway patrol officer. | |||
| Road Captain — Club officer responsible for planning and leading rides. | |||
| Road Crown — Arc of road surface for water drainage. | |||
| Road Debris — Objects on the road posing risks to motorcyclists. | |||
| Road Gator — Large tire tread debris on highways. | |||
| Road Glide — Harley‑Davidson touring motorcycle with frame‑mounted fairing. | |||
| Road Guard — Rider assigned to block intersections during group rides. | |||
| Road Hazard — Obstacle or condition dangerous to riders. | |||
| Road King — Harley‑Davidson touring motorcycle with detachable windshield. | |||
| Road Racing — Motorcycle racing on paved circuits or closed public roads. | |||
| Road Rash — Abrasions from sliding on pavement. | |||
| Road Rash Guard — Protective gear preventing abrasions. | |||
| Road Rash Treatment — First aid for abrasion injuries. | |||
| Road Star — Yamaha cruiser motorcycle, also nicknamed “Roadie.” | |||
| Road Surface — General condition of pavement affecting traction. | |||
| Road Sweep — Rider at the back ensuring no one is left behind. | |||
| Road Test — Evaluation ride to assess a motorcycle’s performance. | |||
| Road Tour — Organized multi‑day motorcycle trip. | |||
| Road Trial — Off‑road competition testing rider skill and balance. | |||
| Road Trip — Long‑distance motorcycle journey. | |||
| Roadbook — Navigation guide used in rally racing, showing turns, hazards, and distances. | |||
| Roadbook Holder — Device mounted on handlebars to display and scroll roadbook notes. | |||
| Roadbook Rally — Rally event where riders navigate using a roadbook instead of GPS. | |||
| Roadhouse — Bar or restaurant popular with motorcyclists. | |||
| Roadhouse Culture — Social scene of riders gathering at roadhouses. | |||
| Roadhouse Rally — Rally centered around a roadhouse. | |||
| Roadie — Yamaha Road Star nickname. | |||
| Roadster — Naked or standard motorcycle emphasizing agility. | |||
| Roadster Seat — Flat, minimalist seat style. | |||
| Roadster Tank — Classic teardrop‑shaped fuel tank. | |||
| Rocker (Patch) — Curved patch on club colors denoting name/location. | |||
| Rocker Arms — Levers transferring cam motion to valves. | |||
| Rocker Clutch — Foot clutch pedal rocking on a pivot. | |||
| Rodger Flannel — Slang for boring or dull. | |||
| Rolling Basket — Basket‑case bike that’s intact but not running. | |||
| Rolling Chassis — Frame, wheels, suspension without engine/transmission. | |||
| Rolling on the Throttle — Gradually opening throttle to accelerate. | |||
| Rollover — Tire sidewall rubs road during hard cornering. | |||
| Rookie — New or inexperienced rider. | |||
| Rookie Class — Entry‑level racing category. | |||
| Rookie Mistake — Common error made by beginners. | |||
| Roost — Spray of dirt from rear wheel in motocross. | |||
| Roost Guard — Chest protector against flying debris. | |||
| Roost Line — Path marked by dirt spray in motocross. | |||
| Rossi — Valentino Rossi, legendary MotoGP racer. | |||
| Rossi Line — Aggressive racing line associated with Rossi. | |||
| Rossi Wannabe — Rider imitating Rossi’s look without skill. | |||
| Rotor — Rotating disc in a brake system, clamped by calipers to slow the wheel. | |||
| Rotor Carrier — Hub or mount that secures the brake rotor to the wheel. | |||
| Rotor Warp — Distortion of a brake rotor, often causing vibration or pulsing brakes. | |||
| Rough Idle — Engine running unevenly at idle speed, often due to carburetion or ignition issues. | |||
| Rough Road — Poor road surface that affects handling and rider comfort. | |||
| Rough Shift — Harsh or clunky gear change, usually caused by clutch or gearbox issues. | |||
| Roun To‑It — Joke term for procrastination (“I’ll get around to it”). | |||
| Round Bar — Tubular steel used in frame or crash bar construction. | |||
| Round Headlight — Classic circular motorcycle headlamp, common on standards and vintage bikes. | |||
| Round Port — Cylinder head port with round cross‑section for airflow. | |||
| Round Tube Frame — Motorcycle frame built from round steel tubing. | |||
| Roundel — Nickname for the BMW logo, a round blue‑and‑white emblem. | |||
| Roving Chapter — Club chapter without a fixed base, traveling widely. | |||
| Roving Crew — Group of riders known for constant travel. | |||
| Roving Rally — Motorcycle rally that changes location annually. | |||
| RPM (Revolutions Per Minute) — Measurement of crankshaft speed. | |||
| RPM Limiter — Device preventing engine overspeed. | |||
| RPM Range — Operating range of engine speed. | |||
| RR (Suffix) — Race Replica or Race Ready (e.g., Honda CBR600RR). | |||
| RUB — Rich Urban Biker; weekend rider with money but little skill. | |||
| RUB (Rich Urban Biker) — Affluent weekend rider with money but little skill. | |||
| Rubber — Tires. | |||
| Rubber Band Effect — Speed lag in group riding. | |||
| Rubber Bushing — Flexible mount reducing vibration. | |||
| Rubber Grip — Handlebar grip made of rubber for comfort. | |||
| Rubber Mounted — Engine isolated with rubber mounts to reduce vibration. | |||
| Rubber Side Down — Slang for safe riding (tires on pavement). | |||
| Rubbernecking — Distracted looking while riding. | |||
| Rubberside — Refers to the bottom of the bike (tires). | |||
| Rubbing Compound — Abrasive paste used to polish paint or chrome. | |||
| Ruckus — Honda’s rugged 50cc scooter, popular for customization. | |||
| Ruckus Build — Custom project based on the Honda Ruckus. | |||
| Ruckus Scene — Subculture around customizing Honda Ruckus scooters. | |||
| Rudder Effect — Tendency of a motorcycle to resist lean due to aerodynamic drag. | |||
| Rugged Terrain — Harsh off‑road environment. | |||
| Ruggedized Gear — Protective gear reinforced for adventure riding. | |||
| Rule Change — Amendment to racing or club rules. | |||
| Rule Violation — Breach of official rules. | |||
| Rulebook — Official regulations for racing or club events. | |||
| Rumble — Deep exhaust sound associated with V‑Twin motorcycles. | |||
| Rumble Award — Award given at a rumble rally. | |||
| Rumble Club — Group known for loud exhausts. | |||
| Rumble Patch — Patch signifying a rumble event. | |||
| Rumble Rally — Rally emphasizing loud bikes. | |||
| Rumble Seat — Passenger seat mounted behind the rider, common on cruisers. | |||
| Rumble Strip — Grooved pavement designed to alert inattentive drivers. | |||
| Rumble Tradition — Tradition of loud exhaust gatherings. | |||
| Run — Organized ride for a purpose or event. | |||
| Run Dry — Engine operating without oil, causing severe damage. | |||
| Run Flat Tire — Tire designed to operate temporarily after puncture. | |||
| Run Patch — Patch commemorating participation in a specific ride. | |||
| Run Pin — Pin given to riders who attend a rally or run. | |||
| Run What Ya Brung — Informal drag racing with any motorcycle. | |||
| Runabout — Small, lightweight motorcycle for errands or short trips. | |||
| Runaway Bike — Motorcycle moving without rider control. | |||
| Runaway Chain — Chain that has derailed from sprockets. | |||
| Runaway Throttle — Throttle stuck open, causing uncontrolled acceleration. | |||
| Run‑In Oil — Special oil used during engine break‑in. | |||
| Run‑In Period — Break‑in period for a new motorcycle engine. | |||
| Run‑In Service — First scheduled service after break‑in. | |||
| Runner — Slang for a fast motorcycle. | |||
| Runner Build — Custom bike built for speed. | |||
| Runner Class — Racing category for lightweight fast bikes. | |||
| Running Board — Flat footrest platform, common on cruisers. | |||
| Running Gear — Collective term for wheels, tires, and suspension. | |||
| Running Lights — Lights that remain on while the motorcycle is operating. | |||
| Runout — Tire out‑of‑roundness causing vibration. | |||
| Runway Bike — Motorcycle used for top‑speed runs on airstrips. | |||
| Runway Record — Speed record set on an airstrip. | |||
| Runway Test — High‑speed test conducted on an airstrip. | |||
| Rust Bucket — Motorcycle in poor condition due to corrosion. | |||
| Rust Culture — Subculture celebrating aged motorcycles. | |||
| Rust Inhibitor — Chemical treatment preventing corrosion. | |||
| Rust Proofing — Protective coating applied to prevent corrosion. | |||
| Rust Rally — Rally featuring old, rusty motorcycles. | |||
| Rust Removal — Process of eliminating corrosion from parts. | |||
| Rust Sealer — Coating applied to prevent further rust. | |||
| Rust Show — Motorcycle show featuring patina bikes. | |||
| Rust Spot — Localized corrosion on chrome or painted surfaces. | |||
| Rusted Out — Motorcycle deteriorated beyond repair due to rust. | |||
| Rusty Pipes — Exhaust system corroded from moisture or neglect. | |||
| Rusty Tank — Fuel tank corroded internally, often clogging carbs. | |||
| Rusty Tank — Fuel tank corroded internally. | |||
| Ruthless Club — Motorcycle club known for aggressive image. | |||
| Ruthless Rider — Slang for an aggressive, fearless motorcyclist. | |||
| Ruthless Style — Custom style emphasizing raw, aggressive looks. | |||
| Ruts — Deep grooves in dirt tracks affecting line choice. | |||
| Rutted Corner — Corner with deep grooves affecting line. | |||
| Rutted Track — Dirt track with multiple grooves. | |||
| RV (Racing Version) — Manufacturer designation for a racing‑spec motorcycle. | |||
| RV Cam — High‑performance camshaft for racing. | |||
| RV Spec — Motorcycle built to racing version specifications. | |||
| RWB (Red, White, Blue) — Paint scheme associated with American or Honda racing bikes. | |||
| RWD (Rear‑Wheel Drive) — Power delivered to the rear wheel, standard on motorcycles. | |||
| RWP (Ride With Pride) — Slogan or motto used by motorcycle clubs. | |||
| RWS (Rear Wheel Steering) — System allowing slight steering input from the rear wheel. | |||
| RX (Race Cross) — Abbreviation for motocross racing class. | |||
| RX Track — Track designed for motocross or supercross competition. | |||
| RXR (Race Cross Replica) — Production motorcycle styled after motocross racers. | |||
| RZ Culture — Enthusiast community around Yamaha’s RZ series. | |||
| RZ Legacy — Lasting influence of Yamaha’s RZ two‑stroke sportbikes. | |||
| RZ Series — Yamaha two‑stroke sportbike line, popular in the 1980s. | |||
| RZ350 — Famous Yamaha two‑stroke sportbike, Kenny Roberts edition. | |||
| RZ500 — Yamaha V4 two‑stroke sportbike, mid‑1980s. | |||
| RZV500R — Japanese‑market version of Yamaha’s RZ500, lighter and restricted. | |||

