View source for List of bicycle parts

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{{For|terms used in bicycle-related activities|Glossary of cycling}}

[[File:Bicycle diagram.svg|thumb|upright=1|Bicycle parts]]

'''List of [[bicycle]] parts''' by alphabetic order:

* '''[[Axle]]''': as in the generic definition, a rod that serves to attach a wheel to a bicycle and provides support for bearings on which the wheel rotates, for example a [[through-axle]] or an axle made for a [[quick release skewer]]. Also sometimes used to describe suspension components, for example a swing arm pivot axle
* '''[[Bar ends]]''': extensions at the end of straight handlebars to allow for multiple hand positions
* '''[[Bicycle handlebar#Plugs|Bar plugs]]''' or '''end caps''': plugs for the ends of handlebars
* '''[[Bicycle basket|Basket]]''': it is an optional attachment on a bike and is used for carrying things 
* '''[[Bearing (mechanical)|Bearing]]''': a device that facilitates rotation by reducing friction
* '''[[Bicycle bell|Bell]]''': an audible device for warning pedestrians and other cyclists
* '''[[Belt-driven bicycle|Belt-drive]]''': alternative to '''chain-drive'''
* '''Bicycle brake cable''': see '''Cable'''
* '''[[Bottle cage]]: '''a holder for a water bottle
* '''[[Bottom bracket]]: '''The bearing system that the pedals (and cranks) rotate around.  Contains a spindle to which the crankset is attached and the bearings themselves.  There is a bearing surface on the spindle, and on each of the cups that thread into the frame.  The bottom bracket may be overhaulable (an adjustable bottom bracket) or not overhaulable (a cartridge bottom bracket). The bottom bracket fits inside the bottom bracket shell, which is part of the bicycle frame
* '''[[Bicycle brake|Brake]]''': devices used to stop or slow down a bicycle. '''Rim brakes''' and '''disc brakes''' are operated by brake levers, which are mounted on the handlebars. '''Band brake''' is an alternative to rim brakes but can only be installed at the rear wheel. '''Coaster brakes''' are operated by pedaling backward
* '''[[Bicycle brake#Brake levers|Brake lever]]''': a lever for actuating a bicycle brake
* '''[[Shifter (bicycle part)#Combined brake and shift levers|Brake shifter]]''' or colloquially, brifter (see also [[Shimano Total Integration]], [[Campagnolo ErgoPower]] and [[SRAM Double Tap]]): combined shifter and brake lever control
* '''[[Braze-on]]''': a fitting protruding from a frame to provide attachment, typically for cable housings or tire pumps and similar accessories
* '''[[Cable guide]]''': a fitting below the bottom bracket which guides a piece of bare inner [[bowden cable]] around a corner
* '''[[Bowden cable|Cable]]''': a metal cable enclosed in part by a metal and plastic housing that is used to connect a control, such as a brake or shifting lever, to the device it activates
* '''[[Cartridge bearing]]''': a type of bearing that is not user-serviceable, but must be replaced as a unit
* '''[[Cogset#Cassettes|Cassette]]''': a group of stacked sprockets on the rear wheel of a bicycle with a rear derailleur
* '''[[Coaster brake]]''' or backpedal brake  
* '''[[Bicycle chain|Chain]]''': a system of interlinking pins, plates and rollers that transmits power from the front sprocket(s) to the rear sprocket(s)
* '''[[Gear case|Chainguard]]''': [[Gear case]] cover for the entire chain either totally encasing (sometimes containing [[Cycle oil|oil]]) or 'incomplete'. Either way, designed to keep clothing from fouling the chain. See also '''Skirtguard, [[Bashguard]].'''
* '''[[Crankset#Chainring|Chainring]]''': (one of the) front gear(s), attached to a crank
* '''[[Chainset]]''': see '''Crankset'''
* '''[[Bicycle frame#Chain stays|Chainstay]]''': a pair of tubes on a bicycle frame that runs from the bottom bracket to the rear fork ends
* '''[[Single-speed bicycle#Chain tensioning|Chain tensioner]]''': a device to maintain proper chain tension
* '''[[Dropout (bicycle part)#Chaintugs|Chaintug]]''': a device to aid in setting the proper chain tension
* '''Cluster''': a bicycle [[cogset]], either a freewheel, or cassette
* '''[[Cogset]]''': the set of rear sprockets that attaches to the hub on the rear wheel
* '''[[Race (bearing)|Cone]]''': holds bearings in place, pressed against the cup
* '''[[Cotter (pin)|Cotter]]''': pin for attaching cottered [[Crankset#To the bottom bracket|cranks]]
* '''[[Bicycle torque coupling|Coupler]]''': to connect tubing together
* '''[[Crankset]]''' or '''chainset''': composed of cranks and at least one chainring
* '''[[Cup and cone bearing|Cup]]''': receives ball bearings which roll along its inner surface; integrated on most conventional hubs or can be pressed into older bottom bracket shells. See also '''Cone'''
* '''[[Cyclocomputer]]''': an electronic accessory that measures and displays instantaneous and cumulative speed and distance. Often provides other measurements such as heart rate
* '''[[Derailleur]]''': an assembly of levers, usually cable-actuated, that moves the chain between sprockets on a cassette or chainring assembly
* '''Derailleur cage''': the part of the [[Derailleur#Rear_derailleurs|Rear derailleur]] that holds the '''Pulley wheels'''
* '''[[Quick release dropout]]''': a piece on the rear [[Dropout (bicycle part)|dropout]] that the derailleur attaches to.
* '''[[Bicycle frame|Down tube]]''': tube on the bicycle frame that runs from the head tube to the bottom bracket
* '''[[Dropout (bicycle part)|Dropout]]''': a bicycle rear fork end that allows the rear wheel to be removed without first derailing the chain. The term ''dropout'' is often incorrectly used to refer to any ''fork end'', but not all fork ends are dropouts
* '''[[Dustcap]]''': any cap serving to keep dirt and contamination out of an assembly. Common over crank bolts, often plastic
* '''[[Bicycle lighting#Dynamo systems|Dynamo]]''': bicycle lighting component, also known as '''generator'''
* '''[[Dropout (bicycle part)#Eyelets|Eyelet]]''':
:1) attachment point on frame, fork, or dropout for fenders, racks, etc.
:2) a hole through which a [[spoke nipple]] passes through the rim so it may attach to a spoke
* '''[[Electronic Gear-Shifting System]]''': not simply a type of shifter or a type of derailleur, a complete system with switches instead of levers, wires instead of Bowden cables, and motor-driven derailleurs that must all work together
* '''[[Bicycle fairing|Fairing]]''': a full or partial covering for a bicycle to reduce aerodynamic drag or to protect the rider from the elements
* '''[[Fender (vehicle)#Bicycles and motorcycles|Fender]]''' or '''mudguard''': curved pieces of metal or plastic above the tires which catch and redirect road spray thrown up by the tires, allowing the rider to remain relatively clean. May come in pairs
* '''[[Ferrule]]''': a metal or plastic sleeve used to terminate the end of a cable housing
* '''[[Bicycle fork|Fork]]''': a mechanical assembly that integrates a bicycle's frame to its front wheel and handlebars, allowing steering by virtue of its steerer tube
* '''[[Bicycle fork|Fork crown]]''': the point at which the two blades of the fork meet below the steerer tube.
* '''[[Fork end]]''': paired slots on a fork or frame at which the axle of the wheel is attached. See also '''Dropout'''
* '''[[Bicycle frame|Frame]]''': the mechanical core of a bicycle, the frame provides points of attachment for the various components that make up the machine. The term is variously construed, and can refer to the base section, always including the bottom bracket, or to base frame, fork, and suspension components such as a shock absorber
* '''[[Freehub]]''': a ratcheting assembly onto which a cog or cassette is mounted that allows the bicycle to coast without the pedals turning
* '''[[Freewheel (bicycle part)|Freewheel]]''': a ratcheting assembly that incorporates one or more cogs and allows the bicycle to coast without the pedals turning
* '''[[Gusset plate|Gusset]]''': plates added to the outsides of [[Bicycle frame|frame]] tubes to strengthen joints. These are more commonly seen on [[BMX bike|BMX]] and [[Mountain bike|mountain]] bikes
* '''[[Derailleur hanger|Hanger]]''': part of frame or an attachment to the frame to which the derailleur is attached (see '''Derailleur hanger''')
* '''[[Bicycle handlebar|Handlebar]]''': a lever attached, usually using an intermediary stem, to the steerer tube of the fork. Allows steering and provides a point of attachment for controls and accessories
* '''Handlebar plug''': see '''Bar plugs'''
* '''[[Bicycle handlebar#Tape|Handlebar tape]]''': a tape wound around dropped handlebars so as to provide padding and grip, usually cork or cloth, sometimes foam rubber
* '''[[Head badge]]''': manufacturer's or brand logo affixed to the [[Bicycle frame#Head tube|head tube]]
* '''[[Bicycle frame#Head tube|Head tube]]''': the tube of a bicycle frame that contains the headset
* '''[[Headset (bicycle part)|Headset]]''': the bearings that form the interface between the frame and fork steerer tube
* '''Hood''': the rubber brake lever covering on bikes with drop style handle bars
* '''[[Bicycle wheel#Hub|Hub]]''': the core of a wheel; contains bearings and, in a traditional wheel, has drilled flanges for attachment of spokes
* '''[[Hub dynamo]]''': a generator inside one of the hubs for powering lights or other accessories
* '''[[Hub gear]]''': a gearbox mounted inside the hub, 3-speed is common, 5, 7 are available ("Sturmey-Archer"), Enviolo makes a [[Continuously variable transmission|CVT]], and Rohloff makes a 14-speed hub. Cable operated by one or two cables
* '''[[Bicycle lighting#Manually operated turn signals|Indicator]]''': a turn signal
* '''[[Inner tube]]''': a bladder that contains air to inflate a tire. Has a Schrader, "Woods"/"Dunlop" or Presta valve for inflation and deflation
* '''[[Jockey wheel]]''' or '''Pulley wheel''': one of two small sprockets of the rear derailleur that guides the chain
* '''[[Kickstand]]''': a folding attachment used for assisting a bicycle to stand up on its own. Usually mounts to frame near bottom bracket, sometimes near rear dropouts
* '''[[Dropout (bicycle part)#Lawyer lips|"Lawyer lips"]]''': also called a "'''lawyer tab'''", a retention device on the dropouts of the front fork to prevent inadvertent loss of the front wheel in the case it is not properly secured
* '''[[Locknut]]''': a nut designed not to loosen due to vibration
* '''[[Lockring]]''': a ring, usually metal, of varying design, that serves to retain a component in place
* '''[[Lug (bicycle part)|Lug]]''': a metal connector used to align frame components where they join each other
* '''[[Luggage carrier]]''': any accessory equipment designed to carry tools, gear or cargo
* '''[[Master link]]''': a bicycle chain accessory that allows convenient removal and reconnection of an installed bicycle chain without the need for a chain tool
* '''[[Spoke nipple|Nipple]]''': a specialized nut that most commonly attaches a spoke to a wheel rim. In some systems, it provides attachment to the hub
* '''[[Pannier]]''': cloth zippered storage bags that mount to sides of luggage racks. Pronounced ''pan-ear'', or ''pan-yer'' (an old English word, which is derived from an old French word)
* '''[[Bicycle pedal|Pedal]]''': mechanical interface between foot and crank arm. There are two general types; one secures the foot with a mechanical clamp or cage and the other has no connection to lock the foot to the pedal.
* '''Peg''': short metal tube, about {{convert|6|in|cm}} long and {{convert|2|in|cm}} fastened to one or both ends of the wheel axles to either enable the rider perform certain [[Freestyle BMX#Tricks|tricks]] or provide a place for extra riders to stand or rest
* '''[[Portage strap]]''': a strap (usually made of leather) attached to the inside of the bike frame, designed to make carrying the bike over one's shoulder easier
* '''[[Pulley wheel]]''': see '''Jockey wheel'''
* '''[[Cycling power meter|Power meter]]''': a device on a bicycle that measures the power output of the rider
* '''[[Quick release skewer]]''': a skewer with a lever on one end that loosens when the lever is flipped. Used for releasing wheels and seat posts
* '''[[Luggage carrier|Rack]]''': a rack that attaches behind the seat, usually with stays to the rear dropouts, that serves as a general carrier
* '''[[retroreflector|Reflector]]''': reflects light to make bicycle evident when the illuminated by headlights of other vehicles. Usually required by law but held in disdain by many cyclists
* '''Removable training wheels''': used for assisting balance. Comes in pair. Useful for first time bicyclists
* '''[[Bicycle wheel#Rim|Rim]]''': that part of a wheel to which the tire is attached and often forms part of the braking mechanism
* '''Rotor''':
:1) the disc component of a disc [[Bicycle brake|brake]].
:2) another name for a [[detangler]] - a device that allows the handlebars and fork to revolve indefinitely without tangling the rear brake cable.
* '''[[Bicycle brake systems#Mechanical|Safety levers]]''': extension levers, and interrupt brake levers. Used to apply brakes in order for the bicycle to slow down or suddenly stop
* '''[[Bicycle saddle|Saddle]]''' or '''[[Bicycle seat|Seat]]''': what a bicyclist sits on
* '''[[Bicycle saddle#Rails|Seat rails]]''': a metal framework over which saddle covering is stretched. The seat post attaches to the seat rails by means of a clamp
* '''[[Seat lug]]''': a frame lug on the top of the seat tube serving as a point of attachment for a clamp to secure the seat post
* '''[[Bicycle frame#Seat_tube|Seat tube]]''': the roughly vertical tube in a bicycle frame running from the seat to the bottom bracket
* '''[[Seat bag]]''': a small storage accessory hung from the back of a seat
* '''[[Seatpost]]''': a post that the seat is mounted to. It slides into the frame's seat tube and is used to adjust ride height depending how far into the seat tube it is inserted
* '''[[Bicycle frame|Seatstay]]''': frame components, small diameter tubes running from top of seat tube to rear dropouts
* '''[[Shaft-driven bicycle|Shaft-drive]]''': alternate to '''chain-drive'''
* '''[[Shifter (bicycle part)|Shifter]]''': gear shifting control
* '''[[Shock absorber]]''': for bicycles with suspensions, a device that limits the rate at which suspension rebounds after absorbing an impact
* '''Side view mirror''': aids in looking at the sides prior to moving slowly or turning to the left or to the right
* '''[[Skirt guard]]''' or '''coatguard''': a device fitted over the rear wheel of a bicycle to prevent a long skirt, coat or other trailing clothes or luggage from catching in the wheel, or in the gap between the rim and the brakes
* '''[[Bicycle pedal#Attachment|Spindle]]''': an axle around which a pedal rotates; threaded at one end to screw into crank arms
* '''[[Spoke]]''': connects wheel rim to hub. Usually wire with one end swaged to form a head and one threaded end. A typical wheel has 36 spokes
* '''[[Loudspeaker|Speakers]]''': loudspeakers specifically made for bicycles and/or [[Baby transport#stroller|stroller]]s for cyclists and pedestrians with children to listen music or answer phone calls on their [[mobile device]]s when bicycling or transporting children. Both [[wireless speaker|wireless]] and [[Wired communication|wired]] speakers are available to mount on their handlebars or frames. Even though speakers specifically made for bicycles are available to purchase, but depending on the sizes and shapes and the cyclists' ingenuities, any speakers can be strapped on to them typically by using silicone strappings. These speakers meant to eliminate the risks of using [[headphone]]s such as obliviousness of incoming cars and other warnings, and continuous playing of music from them would also alert other cyclists and pedestrians nearby 
* '''[[Sprocket]]''' or '''cog''': wheel with teeth that meshes with the chain; one of the wheels in the [[cogset]] or [[crankset]]
* '''[[Bicycle fork|Steerer tube]]''': a tube on top of a fork that is inserted through frame and serves as an axle by means of which bicycle can be steered
* '''[[Stem (bike)|Stem]]''': a bracket used to attach handlebars to steerer tube of fork. Usually secured by pinch bolts
* '''[[Bicycle tire|Tire]]''': as in common usage. Usually pneumatic. A [[Tubular tyre|tubular tire]] is glued to the wheel rim; most tires use tubes, but tubeless tires and rims are increasingly common
* '''[[Bicycle pedal|Toe clips]]''': a metal or plastic cage attached to a pedal. Usually has an adjustment strap. Secures foot to pedal for increased control and more effective transfer of power from foot to drive chain
* '''[[Bicycle frame|Top tube]]''': frame member leading from head tube to seat tube
* '''[[Valve stem]]''' or simply '''valve''': port for adding or releasing air from the inner tube. Two types are commonly used: [[Presta valve|Presta]] and [[Schrader valve|Schrader]]. A third type, the [[Woods valve|Woods/Dunlop valve]], can still be found in Europe and Asia.
* '''[[bicycle wheel|Wheel]]''': as in common usage. Traditionally and most commonly spoked
* '''[[Wingnut (hardware)#Bicycles|Wingnut]]''': for attaching wheels before the development of the quick release skewer

==See also==
{{div col|colwidth=30em}}
*[[27.5 Mountain bike]]
*[[29er (bicycle)]]
*[[Bicycle]]
*[[Bicycle suspension]]
*[[Bicycle tools]]
*[[Bicycle wheel]]
*[[BMX bike]]
*[[Cycling]]
*[[Downhill bike]]
*[[Downhill mountain biking]]
*[[Glossary of cycling]]
*[[Groupset]]
*[[Mountain biking]]
*[[Mountain bike]]
*[[Outline of cycling]]
{{div col end}}

==Notes==
{{reflist}}

==References==
{{cite ISO standard |csnumber=70618 |title=Cycles — Terminology |section= |page= |date= |publisher=[[International Organization for Standardization|ISO]] |access-date=}}

==External links==
* [http://bemi.free.fr/biciklo/ Multilingual Bicycle's Vocabulary] BEMI

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{{Cycling}}
{{Glossaries of sports}}

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