black-oxide-treated chromium steel
Professional quality
This thread-in solution allows you to fit your Shimano 24mm cranks into your BSA threaded bottom bracket shell without any hassle
Precision machined Black Delrin Derailleur pulleys featuring Zero
000 tolerance of sphericity and is considered extremely round
CO MR 18307 LLB - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (CN Clearance) - 18mm x 30mm x 7mm sale black-oxide-treated chromium steelCO 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