BKSR-0286 - T47-Asymmetrical, Thread-In, 440C Stainless, Radial Bearing Bottom Bracket for BB386 type (30mm) spindles. sale They keep the dirt out

They keep the dirt out and the oil inside

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

Included with the kit are seals to protect the bearings from the elements and selection of spacers to allow you to precisely tune your chain-line

BKC-54115 - XD15 Ceramic-Hybrid

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 They keep the dirt outBKSR 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