D.I.D : DID/PBR Chain kit 520ZVM-X 16/46 Super-Reinforced - Ultra-light Hard anodized rear sprocket €189.79
D.I.D 486367 : DID/PBR Chain Kit 520ERT3 12/50 Super-Reinforced - Ultra-Light Self-Cleaning Hard Anodized Rear Sprocket €120.37