Same as with older frames.Mounting the SRAM and Quarq cranks into this 75mm wide, 42mm diameter shell, this bottom bracket, complete with CeramicSpeed bearings, needs to be pressed in.br>The unit comes with CeramicSpeed Standard or Coated Bearings installed in cups.Super smooth, super round CeramicSpeed balls contained in hardened steel races are found in both versions.The version coated has a metallic coating placed on the races, making it even smoother and harder, resulting in lower resistance and longer life.