AFAM 482671 : AFAM Chain kit 520XSR 15/43 Super-Reinforced - Ultra-light Hard anodized rear sprocket €177.03
D.I.D : DID/PBR Chain kit 520ZVM-X 16/46 Super-Reinforced - Ultra-light Hard anodized rear sprocket €189.79
PBR 899 50 TC3 : PBR Twin Color Aluminium Ultra-Light Self-Cleaning Hard Anodized Rear Sprocket 899 - 520 €52.30
AFAM 48011419 : AFAM Chain Kit 520XRR3 13/49 Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €163.31