AFAM : AFAM Chain Kit 520XHR2 15/39 Super-Reinforced - Ultra-light Hard Anodized Rear Sprocket Without Ducati Rear Sprocket Car €184.22
D.I.D 3028022 : DID/JT Chain Kit 525ZVM-X2 15/41 Super-Reinforced - Ultra-light Rear Sprocket Without Ducati Rear Sprocket Carri €162.43
D.I.D 482520 : DID/JT Chain Kit 520ERT3 14/50 Racing - Ultra-Light Self-Cleaning Rear Sprocket €100.37