Rubber padded sprockets have been widely used by the major Japanese motorcycle manufacturers since the early 1990s to dampen the chain impact on the teeth of the front wheel Made of SCM420 chrome steel. alloalloy Holds any mild steel or surface hardened sprocket 16 teeth rubber padded front axle sprocket International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.