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S&S Cycle Pinion Gears are low maintenance gears that improve the performance of your bike. . Fitting these gears on your bike guarantees more torque and therefore more power leading to improved performance. These pinion motorcycle gears are constructed from quality and reliable materials that make them long lasting and durable even when subjected to harsh operating conditions. They are excellent products that are easy to assemble and that work well with your V-Twin engine. Installing the pinion gears is a simple process that takes very few minutes.
High quality S&S pinion gears are carefully machined, heat treated and then finish ground. Three distinct year groups, in up to eight different color coded sizes for optimum gear lash, are available for big twin engines. S&S color codes match Harley-Davidson color codes so that replacement is easy. Just pick the appropriate color S&S gear that matches the color on the damaged stock gear
If the stock gear is unmarked and the size is unknown or you are scratch building an engine and have no gear, S&S recommends that you order a gear in the middle of the size range. These sizes were used more often and should provide adequate gear clearance under most circumstances. When in doubt, use a gear from the middle to the small side of the range, because a combination of looser fitting smaller gears is less likely to cause binding and premature wear. Consult the chart for the size and appropriate part number required. If you wish to achieve optimum cam gear to pinion gear fit, consult your factory service manual for instructions on fitting these gears before making a selection. Some sizes, particularly those on and near the ends of each range, are available on a limited basis because they are the extremes.