| Adjusting barrel |
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Hollow bolt that allows for adjustment of cable tension.
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| Aero bars |
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Handlebars that allows riders to streamline their upper body position. They are more aerodynamic than traditional handlebars.
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| Aerodynamic |
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Bicycle part, riding position, or clothing designed to decrease air resistance.
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| Anodized |
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Process of coating metal with a protective film or paint.
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| Back pedal brake |
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Hub that includes a brake, allowing riders to stop the bike by pedaling backwards. Also called coaster brakes.
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| Balaclava |
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Hood worn under a helmet that covers a rider's head and neck.
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| Banana seat |
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Long, banana-shaped seat used on lowrider bikes.
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| BMX bike |
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Bicycle Motocross: Single-speed bicycle popular among children and teenagers that usually have 20-inch wheels and a freewheel.
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| Bottom bracket |
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Part of a frame where the pedals revolve.
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| Brakes |
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System that slows down or stops a bike by creating friction.
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| Cadence |
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Ability to pedal at a constant pace.
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| Caliper brakes |
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Braking system that moves the brakes toward the rim to create friction.
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| Cantilever brakes |
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Braking system that uses two separate arms on each side of the rim to create friction.
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| Chain |
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Series of metal links that grips onto sprockets to move a bike when a person pedals.
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| Chain guard |
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Cover placed over a bike chain to prevent clothing from getting caught in the chain or on the sprocket.
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| Cleat |
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Wedge-shaped fitting at the bottom of a cycling shoe that engages the pedal.
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| Clipless pedals |
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Pedals that have the ability to lock cleats into place.
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| Coaster brake |
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Hub that includes a brake, allowing riders to stop the bike by pedaling backwards. Also called back pedal brakes.
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| Comfort bike |
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Bicycle with a short top tube and adjustable handlebars that allow a rider to sit in an upright position. It also has smooth, wide tires and uses the same wheel size, brakes, and gear equipment as a mountain bike.
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| Cruiser |
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Basic bicycle with a curved top tube. It's built for comfort, not performance.
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| Back to top | |
| Damper |
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Device that dissipates energy from a spring and prevents a seat from bouncing constantly every time the bike hits a bump.
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| Derailleur |
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Device that moves the bike chain from one sprocket to another in order to change gears.
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| Disc brakes |
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Hub brake that uses a caliper to squeeze a disk and create friction.
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| Double pivot |
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Sidepull brakes with two linked arms
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| Downshift |
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Process of shifting to a lower gear.
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| Drive train |
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Parts of a bicycle that work together to generate forward motion.
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| Drop handlebars |
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Handlebars that have a high midpoint.
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| Drop out |
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Bike design that allows a user to remove the rear wheel without removing the bike chain.
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| Dual suspension |
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Suspension for both wheels.
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| Fender |
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Covering for the upper part of the wheel that protects a rider from water spray and mud.
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| Fork |
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Two blades that hold a wheel.
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| Frame |
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Bicycle skeleton consisting of tubes.
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| Freewheel |
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Wheel that spins freely in one direction and locks in the other.
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| Front derailleur |
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Derailleur that moves the top part of the chain between the three front sprockets.
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| Gears |
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Mechanism that allows a rider to change the distance a bike can travel with each pedal stroke.
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| Handlebars |
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Bar with grips on either end.
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| Hub |
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Middle part of a wheel that attaches to spokes and can include a brake.
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| Hybrid bike |
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Cross between a mountain bike and road bike that offers superior performance to a comfort bike.
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| Inseam |
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Measurement from the inside of the upper leg to the ankle.
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| Lowrider |
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Bicycle with high handlebars and a banana seat.
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| Back to top | |
| Mountain bike |
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Bicycle designed for off-road use. It has treaded tires that can be more than 1.75 inches wide, and can have up to 27 speeds, toe clips, and a dense foam seat.
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| Rear derailleur |
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Derailleur that switches gears and keeps tension in the chain.
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| Recumbent bike |
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Bicycle featuring a chair-like seat that sits low to the ground.
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| Rim |
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Outer metal hoop of a wheel.
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| Road racing bike |
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Bicycle with a lightweight frame designed for use on paved roads. Riders usually sit at an incline, crouched toward the handlebars in a streamlined position.
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| Shifter |
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Switch that allows a rider to adjust gears to increase or decrease cadence.
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| Sidepull |
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Caliper brake with a cable running along the side.
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| Spokes |
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Small bars inserted into the hub of a wheel to support the rim.
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| Spring |
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Coil that allows mountain bike suspension to move up when the bike hits a bump.
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| Sprocket |
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Cog that grips a chain.
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| Back to top | |
| Suspension |
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System that helps a bicycle and rider absorb shock. It allows a wheel to move up and down while the tire maintains contact with the ground.
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| Tandem bike |
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Bicycle with front-to-back seats and pedals for two or more riders.
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| Top tube |
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Tube that makes up the top of the bike frame.
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| Tricycle |
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Three-wheel bicycle geared toward young children.
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| Unicycle |
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One-wheel bicycle.
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| Back to top | |
| Upshift |
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Shift to a higher gear.
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| Wheels |
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Hub, rim, spokes, and tires.
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