AFAM 48011294 : AFAM Chain Kit 520MR2 13/50 Standard - Ultra-Light Hard Anodized Rear Sprocket €109.48
D.I.D : DID/JT Chain Kit 520ERT3 13/51 Super-Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €103.86
AFAM 48010887 : AFAM Chain Kit 420MX2 15/56 Standard - Ultra-Light Hard Anodized Rear Sprocket €97.83
D.I.D 3036399 : DID/PBR Chain Kit 525ZVM-X2 17/45 Super-Reinforced - Ultra-Light Rear Sprocket €203.10