Steel rear sprockets are made from carbon steel and electroplated with a satin black finish that resists corrosion; teeth are hardened so sprocket will hold up to many miles, without affecting strength
Steel rear sprockets are also cupped down from the tooth ring to body to reduce as much weight as possible
Vortex 1210-1090 Vehicle Fitment & Compatibility
Fitment data lists this product for 26 model-year applications, including BMW S1000R, BMW S1000RR, and BMW S1000XR, with listed model years from 2009 through 2020.