RENTHAL 485375 : RENTHAL Chain Kit 520R3 14/48 Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €265.26
AFAM : AFAM Chain kit 520XHR2 17/45 Super-Reinforced - Ultra-light Hard anodized rear sprocket €219.54
AFAM 48012013 : AFAM Chain kit 520MR2 09/42 Standard - Ultra-light Hard anodized rear sprocket €97.14
PBR 489 49 TC7 : PBR Twin Color Aluminium Ultra-Light Self-Cleaning Hard Anodized Rear Sprocket 489 - 520 €52.30
AFAM 48011906 : AFAM Chain Kit 520XSR 16/43 Super-Reinforced - Ultra-Light Hard Anodized Rear Sprocket €187.66