Puleggia posteriore ruota guida cuscinetto fibra di carbonio ceramica bici strada per trasmissione
Oversized ceramics Pulley Wheel System for SRAM Red/ Force AXS (Non Coated) Black 78g Derailleur Pulley. The Shimano 9100/9150 and 8000 SS/8050 SS OSPW system is compatible up to a 32 tooth cassette for both Dura Ace & Ultegra derailluers.