29 INCH MOUNTAIN BIKES

Rear Bike Derailleur

derailleur


Derailleur gears are a variable-ratio transmission system commonly used on bicycles, consisting of a chain, multiple sprockets of different sizes, and a mechanism to move the chain from one sprocket to another.


The mechanism on a bicycle used to move the chain from one sprocket (gear) to another; The entire gearset on a bicycle with such a mechanism


(Say: dee - ray - lure) - Also called a "shifter" or in England, a "mech," a derailleur is a mechanism that literally derails the chain moving it to another cog or chainring. There are rear and front derailleurs. The rear shifts the chain across the cogs.


A bicycle mechanism that moves the chain out and up, allowing it to shift to different cogs

rear


The back part of something, esp. a building or vehicle


The space or position at the back of something or someone


stand up on the hind legs, of quadrupeds; "The horse reared in terror"


the back of a military formation or procession; "infantrymen were in the rear"


The hindmost part of an army, fleet, or line of people


rear(a): located in or toward the back or rear; "the chair's rear legs"; "the rear door of the plane"; "on the rearward side"

bike


motorcycle: a motor vehicle with two wheels and a strong frame


bicycle: ride a bicycle


bicycle: a wheeled vehicle that has two wheels and is moved by foot pedals


A bicycle or motorcycle