Hollowtech II

CERAMICSPEED EVO386 Bottom Bracket for Shimano Black CoatedTechnical DataThe design of overlapping cups extending through the shell for EVO386 reduce the likelihood of creaking and increase the reliability of the system.The CeramicSpeed Standard Bearings feature an average drag reduction of 75% compared to stock bottom brackets. That translates into frictional drag of 0.3-0.4 watts per set, which is the result of great design, hardened-steel races, and ceramic balls that are 100% smoother and 15% harder than the ceramic competition.The CeramicSpeed Coated Bearings are a step up as they reduce drag by 50% compared to our Standard Bearings and an improvement in bearing life by 60%.All Round Grease comes standard in the bearings, but can be replaced for lower drag Race Day Grease, or higher durability Long Life Grease, which adds a bit of drag but stays in when riding through messy conditions. EVO386 for Shimano The EVO386 standard is designed for oversized spindles. CeramicSpeed’s kit for Shimano allows you to install Shimano or FSA cranks with 24mm thru-axle spindles.The cups come with CeramicSpeed Bearings installed. Both CeramicSpeed Standard and Coated Bearings are available. Both utilize super smooth CeramicSpeed Balls and hardened-steel races. The latter has an additional metallic coating on the races to further smooth and harden the steel, further increasing life and lowering drag.In The Box1 bottom bracket with bearings installed.2 dust covers.All Round Grease.Sticker Sheet.