JT DRIVE CHAIN 485453 : JT Chain Kit 520HDS 16/38 Super-Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €63.73
D.I.D 482538 : DID/REN Chain Kit 520ERT3 13/48 Racing - Ultra-Light Self-Cleaning Rear Sprocket €139.85
D.I.D : DID/PBR Chain Kit 520VX3 14/52 Standard - Ultra-Light Self-Cleaning Hard Anodized Rear Sprocket €121.51
AFAM 48011322 : AFAM Chain Kit 520MR2 13/50 Standard - Ultra-Light Hard Anodized Rear Sprocket €109.48
AFAM 3038795 : AFAM Chain Kit 520MX6 11/41 Reinforced - Ultra-Light Hard Anodized Rear Sprocket €123.79