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.

Bottom Bracket Includes:

• BB Cups with bearings
• 2 - Silicone dust seals
• 2 - 0.5mm crank spindle spacers
• 2 - 1.0mm crank spindle spacers
• 2 - 46mm x 1.0mm cup spacers
• 1 - 46mm x 2.5mm cup spacer
• 1 - wave washer

• Bearings: 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: 180g
• Packaged for retail display
• View more detail on WheelsMFG.com

*Notes:

• Specialized Carbon OSBB frames with a 61mm shell width need additional 3.5mm cup spacers.
• BB cups produced after July 2018 do not use o-rings.
• Over Bearing Width Dimensions include supplied silicone dust shields.