AFAM 92115 Rear Sprocket

Features: - They are made of standard C45 steel and CNC machined, with induction hardened teeth . - A harder coating on the teeth drastically reduces wear on the sprocket and chain , ensuring longer wear life. - They are finished in silver (galvanized) or black (electrophoresis) for long-lasting protection against corrosion. - The normalized steel prevents the crown from suffering microcracks in the material, which ensures the quality of the product and offers safe use. - It is completely round, flat and concentric, with the exclusive AFAM tooth profile that makes it the best replacement crown. Specifications: - AFAM transmission crown - Type: standard - Step: 420 - Size: 51 teeth - Material: steel - Inner diameter: Ø 100 mm - Fixing hole diameter: Ø 8.25 mm - Number of holes: 6 - Bolt passage diameter: Ø 115 mm - Coating: galvanized