RENTHAL 481367 : RENTHAL Chain Kit 420R1 15/49 Standard - Ultra-Light Self-Cleaning Rear Sprocket €136.40
RENTHAL 224U-520-51GPHA : RENTHAL Aluminium Ultra-Light Self-Cleaning Hard Anodized Rear Sprocket 224U - 520 €76.28
JT DRIVE CHAIN 485467 : JT Chain Kit 520X1R3 14/48 Reinforced - Ultra-Light Self-Cleaning Rear Sprocket €86.21