... -plated5.Zincing6.Heat treatment7.Carburizing8.Quenching9.Tempering10.Oiling11.Greasing The sprocket features:1. Galvanized or zinc plated;2. Chrome plating;3 ... ,ER100, ER125, FD115, FR100, GT50, GP100, GP125, GN125, etc.3. Sprocket Model For Yamaha:AG100, CRYPON, DX100, DT125, FS80, GT50, JUPITER ...