Precision machined Black Delrin Derailleur pulleys featuring Zero
This bearing has been used as a suspension pivot bearing by a number of bicycle brands including Trek and Giant
a 52 mm x 16-spline tool is required for the non-drive side
This thread-in solution allows you to fit your Shimano 24mm cranks into your BSA threaded bottom bracket shell without any hassle
Professional quality
CO MR 18307 LLB - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (CN Clearance) - 18mm x 30mm x 7mm sale Precision machined Black Delrin DerailleurCO MR 18307LB Enduro Zero, Black Oxide, Ceramic Hybrid, ABEC 5, radial Bearing (CN clearance) 18mm x 30mm 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