AFAM 3038421 : AFAM Chain Kit 520MX6 13/50 Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €140.30
D.I.D : DID/PBR Chain Kit 520VX3 13/50 Standard - Ultra-Light Self-Cleaning Hard Anodized Rear Sprocket €128.50
D.I.D 3029804 : DID/PBR Chain kit 525ZVM-X2 15/43 Super-Reinforced - Ultra-light Hard anodized rear sprocket €194.82
D.I.D 482513 : DID/JT Chain Kit 520DZ2 13/51 Super-Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €93.04