The topmost small toothed wheel on the rear derailleur. It's responsible for moving the chain during shifting. The bottom pulley is called the "tension pulley." It creates tension on th [..]

The motorized "circus" that accompanies most major professional stage races and even some amateur events, the caravan is composed of officials' vehicles, motorcycle police, team cars, m [..]

Slang for many cyclists' favorite post-ride "energy bar," the burrito.

(Say: ill - oom - in - nite) - A brand name for a highly reflective fabric used in high-tech cycling clothing.

Also called "glue", this is the adhesive that's applied to rims to mount sew-up (also called "tubular") tires.

Also called "shimmy," this is a dangerous side-to-side front-end oscillation while riding caused by a damaged or in-need-of-repair bicycle, or road/trail conditions. It starts off slowly and [..]

Shimano's name for its road-bike shifting brake levers. It stands for Shimano Total Integration.

The American Bicycle Association, the world's largest sanctioning BMX organization.

A trick where the rider goes straight up the ramp and while they are still facing forward they tap the back tire to the coping/obstacle, then drop back down the ramp riding backwards or fakie. The rid [..]

A multi-discipline team race that varies in length and distance from a few hours to several days. Involves multiple sports such as cycling, running, orienteering, boating, rappelling, etc.