Bicycle & electric bicycle

Bicycle & electric bicycle

Of or relating to a two-wheeled mode of transportation that is human or electric powered through a gear and chain system.

Industry: Transportation

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Bicycle & electric bicycle

presta valve

Sports; Bicycle & electric bicycle

the narrow European-style valve found on some inner tubes. A small metal cap on its end must be unscrewed before air can enter or exit.

quadriceps

Sports; Bicycle & electric bicycle

the large muscle in front of the thigh, the strength of which helps determine a cyclist's ability to pedal with power.

ratchet

Sports; Bicycle & electric bicycle

to pedal back and forth in partial strokes. This allows a rider to pass obstacles that would cause a pedal to hit if it were to reach the bottom of a normal stroke.

a special award given to the leader on selected laps during a criterium, or the first rider to reach a certain landmark in a road or cross-country race. It's used to heighten the action. Pronounced ...