AFAM 48011584 : AFAM Chain Kit 520XRR3 13/50 Reinforced - Ultra-Light Hard Anodized Rear Sprocket €146.51
AFAM 48011933 : AFAM Chain Kit 525XRR 15/43 Reinforced - Ultra-Light Hard Anodized Rear Sprocket €179.78
D.I.D : DID/PBR Chain Kit 520ZVM-X 14/46 Super-Reinforced - Ultra-Light Hard Anodized Rear Sprocket €170.40