Mountain bike parts are designed to make your riding experience off-road that much more fun. A typical mountain bike layout has three front gears and nine back gears. A rear derailleur has two jobs. It has to maintain the bicycle’s speed and handle the extra slack.
If you are new to mountain biking, it is beneficial to know a little about the different parts of your bike. You can then better understand the terms used by other mountain bikers when they talk about their bikes. This will help you understand the mechanics of your bike and what to do when it breaks down.
Additionally, knowing the terminology for each part will make it easier to communicate with other mountain bikers when you run into problems.
A mountain bike contains many parts, some of which will be covered below:
1. Bottom bracket – This attaches the crankset to the body of a bike.
2. Brake cable – This cable connects the brake lever to the brake mechanism.
3. Brake lever – The lever on the handlebar activates the brakes. The left side is the front brake, and the right is the rear brake.
4. Chain – The circular set of links that transfer power from the chainring to the cogs.
5. Chainring – The toothed rings attach to the crank to hold the chain.
6. Crank – The lever extends from the bottom bracket to the pedal, transferring the power to the chainrings.
7. Derailleur – The mechanism for moving the chain from one cog to another.
8. Down tube – The frame section extends downward from the stem to the bottom bracket.
9. Front shock – The shock absorber on the front fork.
10. Handlebar – The horizontal bar is attached to the stem with handgrips.
11. Headset – The mechanism in front of the frame that connects the front fork to the stem and handlebars.
12. Hub – The spokes are attached to the center part of the wheel.
13. Idler pulley – The bottom pulley of the rear derailleur that provides spring tension to keep the chain tight.
14. Nipple – A threaded receptacle that holds the end of the spoke to the rim.
15. Pedal – The platform to pedal on; attaches to the crank.
16. Rear shock – The shock absorber for the rear tire on dual-suspension type bikes.
17. Rim – The metal ring that holds the spokes on the inside and the tire to the outside.
18. Saddle – The seat.
19. Seat post – Offers support for the seat.
20. Skewer – The metal rod that goes through the hub, attaching the wheel to the frame’s dropouts.
21. Spindle – The free rotating axle that the crank arms attach to; also a part of the bottom bracket.
22. Spokes – The thick wires that join the hub to the rim.
23. Stem – A piece attaches the handlebar to the steering tube.
24. Wheel hub – The center of the wheel that the spokes are attached to.