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A bicycle gear system reduces the pedalling effort by chnaging the mechanical advantage . when a alrge rear sprocket is selected , the torque at the wheel increases but speed decreases. when a smaller sprocket is used the speed increases but pedalling effort become higher generate the voice in nort…

A bicycle gear system reduces the pedalling effort by chnaging the mechanical advantage . when a alrge rear sprocket is selected , the torque at the wheel increases but speed decreases. when a smaller sprocket is used the speed increases but pedalling effort become higher generate the voice in north indian way