CO 6903 LLB BO - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (CN Clearance) - 17mm x 30mm x 7mm sale without mating parts that can

without mating parts that can create annoying noises like creaking

Black Oxide bearings with a two-year

caustic chemicals and UV makes these pulleys highly durable

The most common use for this bearing is as a direct replacement bearing for Shimano bottom brackets with a 24mm OD spindle

CO 6903 LLB BO - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (CN Clearance) - 17mm x 30mm x 7mm sale without mating parts that canCO 6903 LLB BO Enduro Zero, Black Oxide, Ceramic Hybrid, ABEC 5, radial bearing (CN clearance) 17mm 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, dual lip labyrinth (LLB) seals with 90% fill, high pressure, water proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by eliminating steel on