Bike Parts

Bike Parts - On The Bike in General

By Gilang

For the first this is an example Bike Parts Diagram fot two diferent type of bicycles, Mountai Bike (MTB) and BMX

Mountain Bike Parts Diagram

BMX Parts Diagram

People who are new to the cycling world are often surprised by all the different bike parts that go into building one basic bike. To help eliminate some confusion, we've created this bike parts.

The bike parts below are listed in alphabetical order.

bicycle bike part

Bottom bracket : A bottom bracket sits between the cranks and  contains the bearing cartridges that allow the crankset to spin.

Brake cables/hoses : These connect the brake levers to the brakes themselves. Cables are used to control mechanical brakes.

Brake levers : These are the pieces you squeeze to engage the brakes. Racing bike brake levers are clamped horizontally to the handlebar. Road levers are clamped vertically

Brakes : When you need to stop your bike, the brakes apply friction to the wheels, slowing you down.

Cassette : Essentially, the cassette is a group of stacked cogs. It attaches to the rear wheel and grabs the chain so the wheel turns with the chain's movement.

Chain : The chain connects the crankset and chainring to the rear cassette, so when you pedal, the bike actually moves.

Chainrings : These are the larger rings connected to the crankset. They have teeth around the perimeter for grabbing the chain and holes (usually five) in the middle to connect to the spider.

Crankset : Pedals are attached to crank arms, and a pair of crank arms makes up a crankset. Often, cranksets are sold with the spider and chainring. "Integrated cranksets" are those that have the spindle attached.

Fork : The fork assembly consists of the steerer tube, which is inserted through the head tube of the frame, and two posts, which hold the front wheel.

Frame : The bike frame is the tubing to which every other bike part is attached. They come in a variety of sizes and designs.

Grips : Usually rubber, grips are sleeves that slide over the ends of mountain bike and cruiser handlebars. They provide your hands with cushioning and greater control.

Handlebar : The tube you use to control the front wheel.

Headset : Headsets help keep the fork secured to the frame, and they provide the ball bearings for smooth steering. When used with regular, non-quill stems, they can also cap off the steering tube.

Hubs : At the center of every bicycle wheel is a hub. It connects to the spokes and contains the bearings that make it possible for the wheel to turn.

Pedals : These small platforms allow you to propel the bike with your feet. They are attached to the crank arms. Basic pedals are flat platforms.

Rims : The main piece of a wheel, the rim holds the tire and tube, and connects to the spokes.

Saddle : In more common terms, this is the bike seat.

Seat clamp : This clamp keeps the seatpost from sliding around inside the seat tube.

Seatpost : Saddles connect to seatposts, which are inserted inside the frame's seat tube.

Shifters : The levers you move to change gears. These are clamped on to the handlebars. Some are integrated with the brake levers.

Skewers : These are basically the axels of bike wheels. A skewer fits through the hub and clamps the wheel to the frame or fork.

Spider : The spider is the piece that connects the crank arm to the chainring.

Spindle : The spindle is the metal piece that slides through the bottom bracket to connect the crankset.

Spokes : These are the (usually) thin metal rods that connect the wheel's hub to the rim.

Stem : Connects the steering tube (on top of the fork) to the handlebar. A regular bike stem clamps onto the steering tube. A quill stem is inserted into the steerer tube. Both clamp around the middle of the handlebar.

Tires : There are several different types of bike tires.

Tubes : Bicycle tubes come in different sizes to match different tires. One important part of a bike tube is its valve stem, where you connect a pump to inflate the tube.

executive sumary by Jon Carter Davis