CO MR 17287 LLB - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (CN Clearance) - 17mm x 28mm x 7mm sale The eleven-tooth upper and thirteen-tooth

The eleven-tooth upper and thirteen-tooth lower size and profile with 5mm bolt-holes are designed as an upgrade for most 11-speed Shimano GRX derailleurs

15mm ID shock-eye and 44

move faster

This ABEC-5 bearing features deep-groove design races

BB386 TorqTite and traditional BSA and Italian external threaded bottom bracket cups for SRAM DUB (29mm) cranksets

CO MR 17287 LLB - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (CN Clearance) - 17mm x 28mm x 7mm sale The eleven-tooth upper and thirteen-toothCO MR 17287LB Enduro Zero, Black Oxide, Ceramic Hybrid, ABEC 5, radial Bearing (CN clearance) 17mm x 28mm x 7mm Enduro Zero, Ceramic Hybrid, ABEC 5, radial bearing featuring black oxide treated 52100 high Carbon Chromium alloy races paired with Grade 5 Silicon Nitride Ceramic balls, with dual lip labyrinth (LLB) seals to withstand the outside elements and to contain the 90% fill Mobilux NGLI 2 high pressure water proof synthetic grease. Si3N4 ceramic