245S-45
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
Fitment data lists this product for 14 model-year applications, including Honda CB900F, Honda CBF1000, and Honda CBR600F2, with listed model years from 1991 through 2010.