BBB Cycling AluBoys BDP-22 Jockey Wheels Ceramic 11 Teeth

7075 aluminum derailleur pulleys with super smooth and durable and high-quality sealed ceramic bearings. Extra stiff for fast shifting. Compatible with Shimano 9 and 10-speed (except RD-7900 and 7970) and Campagnolo 11-speed. Included in delivery: 1 pair