Enduro Zero Ceramic-Hybrid Bearings featuring Black-Oxide treated 52100 High-Carbon Chromium alloy races paired with Grade 5 Silicon-Nitride Ceramic Balls with 90% fill
Si3N4 Ceramic balls reduce bearing wear and increase bearing life by eliminating steel on steel contact within the bearing
where the bottom bracket bearings and cups are merged into single components
They keep the dirt out and the oil inside
DR 10177 2RS MAX BOSL- MAX-Design
BKSR-0286 - T47-Asymmetrical, Thread-In, 440C Stainless, Radial Bearing Bottom Bracket for BB386 type (30mm) spindles. sale Enduro Zero Ceramic-Hybrid Bearings featuringBKSR 0286 T47 Asymmetrical, Thread In, 440C Stainless Steel, Radial Bearing Bottom Bracket for BB386 type (30mm) spindles. 440C stainless steel bearings pressed into precision machined aluminum T47 cups that simply thread directly into the BB shell. The T47A (Asymmetrical) specification is a new thread in standard that has is similar in concept to BBRight (but with threads) that been used by a couple brands, including Cervelo and Factor. All Enduro