CeramicSpeed BSA 24mm Road Coated Bottom Bracket - Black / English (BSA) / Coated

The CeramicSpeed BSA SRAM GXP Road bottom bracket is a traditional shell size. It has an inner diameter of 34mm and is 68mm wide. These cups thread into the BSA shell making it possible to install SRAM and Quarq 24/22mm spindle cranks. The CeramicSpeed kit comes with bearings pressed into threaded cups, which are then threaded into the frame. Those bearings consist of either CeramicSpeed Standard or Coated Bearings. Super smooth, super round CeramicSpeed balls are rotating in hardened-steel races in both. The Coated version has a metallic coating laid onto the races, making it even smoother and harder, resulting in longer life and lower drag.The cups come with bearings installed and a sleeve is included to further seal the system from the elements and from rubbing on internal cables. The Standard Bearings have only 0.3-.04 watts of frictional drag per set, an average drag reduction of 75% compared to stock bottom brackets.