How to Adjust Speeds With the Sprocket

Geared bicycles use sprockets to help drive the chain and provide a choice of gear ratios. Sprockets are located at both the front and rear of the bicycle. Sprocket choice is controlled by a pair of gear shifters, affixed to either side of the handlebar. Cyclists can adjust the "speed" of a bicycle by choosing particular sprockets. By changing sprockets throughout a bike ride, cyclists can adjust speeds according to particular terrains or riding conditions.

Instructions

  1. Rear Speed Sprockets

    • 1

      Mount the bicycle and begin pedaling evenly. Whenever adjusting speeds, or changing from one sprocket to another, the crank must be turning forward to cause the chain to transfer to the sprocket. Cranks are the "arms" to which the pedals are attached.

    • 2

      Operate the rear gear shifter to a lower speed. The rear gear shifter is affixed to the right side of the handlebar. Many shifters, particularly those found on mountain bikes, have speeds marked on the shifter. A lower number designates a lower speed. The adjustment causes the chain to transfer to a larger rear sprocket. A larger rear sprocket creates a smaller gear ratio.

    • 3

      Operate the rear gear shifter to a higher speed. The chain will shift to a smaller sprocket, resulting in a larger gear ratio.

    Front Speed Sprockets

    • 4

      Pedal the bicycle evenly, and operate the front gear shifter to a lower speed. The front gear shifter is found on the left side of the handlebar. The adjustment forces the chain onto a smaller front sprocket. Unlike rear sprockets, the use of small front sprockets results in a smaller gear ratio.

    • 5

      Change the front gear shifter to a higher speed. The choice of a higher front speed forces the chain to a larger front sprocket, resulting in a larger gear ratio.

    • 6

      Use a combination of both front and rear sprocket to achieve a comfortable ratio. If pedaling is difficult, choose a lower front or rear speed. If pedaling is effortless, choose a higher front or rear speed.