AFAM 48011597 : AFAM Chain Kit 520XRR3 13/51 Reinforced - Ultra-Light Hard Anodized Rear Sprocket 146,51 €
D.I.D 484864 : DID/PBR Chain Kit 525VX3 14/40 Reinforced - Ultra-Light Hard Anodized Rear Sprocket 157,43 €