Thread together bottom bracket for frames using the PF30 bottom bracket standard. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Specifically designed for installing 22mm / 24mm spindle diameter cranks (SRAM / Truvativ GXP) in PF30 (46mm ID BB shell) frames without the need for any adapters. Drive Side Bearing: Enduro Angular Contact Non-Drive Side Bearing: Enduro ABEC-3 Color: Black Bottom Bracket/Frame Interface: PF30, Specialized Carbon OSBB* Bottom Bracket Shell Width: 61mm* - 73mm Bottom Bracket Shell I.D.: 46mm Over Bearing Width: 91.0mm in 68mm wide shell Crank Spindle Diameter: 22mm / 24mm Tool Pattern: 44mm, 16-notch Weight: 178g Specialized Carbon OSBB frames with a 61mm shell width need additional cup spacers. BB cups produced after July 2018 do not use o-rings. Over Bearing Width Dimensions include supplied silicone dust shields. Compatible with the following Bottom Bracket Standards (46mm BB shell inner diameter): PF30Specialized Carbon OSBB. May need additional cup spacers if BB shell width is 61mm. Compatible with stepped 22/24mm spindle diameter cranksets (GXP).
