BBB BDP-22 Aluboys 11T Ceramic

Specifications
11T.
High quality aluminum derailleur pulleys with ceramic bearings.
Extra stiff for fast shifting.
High-quality sealed ceramic bearing. Super smooth and durable.
 Bearing type Ceramic
Compatible with Shimano 9, 10 and 11-speed (except RD-7900 and 7970) / Mega Range, SRAM X0/X9/X7, Apex, Rival, Force and Red (> 2011) and Campagnolo 11-speed.
Compatible with: shimano.
Made of: Aluminum.