AFAM 48013084 : AFAM Chain Kit 525XSR2 16/41 Super-Reinforced - Ultra-Light Hard Anodized Rear Sprocket €194.86
D.I.D 480204 : DID/PBR Chain kit 520ZVM-X 17/39 Super-Reinforced - Ultra-light Hard anodized rear sprocket €191.67
D.I.D 48100020 : DID/PBR Chain Kit 520VX3 15/45 Standard - Ultra-Light Hard Anodized Rear Sprocket €149.17