| Word |
Description |
| Bar Ends |
Short extensions which mount on the end of mountain bike handlebars to provide additional positioning for hands. |
| Barrel Adjuster |
Or adjusting barrel – this is a hollow bolt that gear or brake cables run through. These bolts can be turned to adjust the amount of tension on the cable for fine tuning. |
| Bead |
The bead is the edge of the tire that is held in place by the rim. The bead can be made of wire, or Kevlar. |
| Bottom Bracket |
The section of the frame where the pedal cranks are located - area that houses the bearing and axle assembly - see bike anatomy section. |
| Brake Caliper |
Caliper brakes consist of a single assembly that moves the brake shoes toward the rim. These are the brakes found on most road bikes. Mountain bikes can have cantilever brakes or hydraulic brakes. |
| Brake Shoe |
A metallic structure that holds the rubber (or other compound) brake pad in place. Brake shoes are connected to the brake caliper, a hollow bolt that gear or brake cables run through. These bolts can be turned to adjust the amount of tension on the cable for fine tuning. |
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