11V Rear Derailleur Pulleys ENDURO BEARINGS - XD-15 Ceramic - Shimano GRX 11s 1X Black

The BKCJ-0351 Enduro Bearings derailleur pulleys are 11/13-tooth pulleys in machined Delrin with XD15 Ceramic Hybrid bearings, compatible with Shimano GRX 11-speed derailleurs. These premium pulleys reduce mechanical drivetrain losses.

The integrated XD15 Ceramic Hybrid bearings provide ultra-smooth rotation with reduced friction compared to standard steel bearings. The machined Delrin ensures lightness, durability and dimensional precision. The 11/13-tooth configuration respects the original geometry of GRX derailleurs.

Compatible with Shimano GRX 11-speed derailleurs (5 mm bolt hole). The XD15 Ceramic Hybrid Enduro Bearings technology improves drivetrain efficiency for gravel and road cyclists seeking the best performance.

Ref: 15994420691324