AFAM 48011411 : AFAM Chain Kit 520XRR3 13/48 Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €162.62
AFAM 48011497 : AFAM Chain Kit 520XRR3 13/51 Reinforced - Ultra-Light Hard Anodized Rear Sprocket €146.51
D.I.D 3029709 : DID/PBR Chain kit 525ZVM-X2 15/42 Super-Reinforced - Ultra-light Hard anodized rear sprocket €260.61