Black - Shimano Compatible w/ AC Bearings, PF30 to Outboard Btm. Bracket
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 24.00mm spindle diameter cranks (Shimano, Etc.) 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
Note: FSA MegaExo spindles can be between 24.00mm and 24.07mm in diameter. If your FSA spindle is 24.07mm, this BB will not work! You will need to swap the bearings with our FSA 24.07x37 ceramic hybrid bearings..
Enduro Angular Contact
Bottom Bracket/Frame Interface
PF30, Specialized Carbon OSBB*
Bottom Bracket Shell Width
61mm* - 73mm
Bottom Bracket Shell I.D.
Over Bearing Width
90.5mm in 68mm wide shell
Crank Spindle Diameter
- Packaged for retail display
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):
Specialized Carbon OSBB. May need additional cup spacers if BB shell width is 61mm.
Compatible with 24.00mm spindle diameter cranksets.*
Note: FSA MegaExo spindles can be between 24.00mm and 24.07mm in diameter. If your FSA spindle measures 24.07mm, this BB will not work! You will need to swap the bearings with FSA 24.07x37 bearings.
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We aim to ship out the majority of orders within 2-5 days of receiving your order. Many orders are assembled-to-order, or ordered on demand from our suppliers so can take a little longer than some other online retailers to ship out (we're a small independent retailer, not Amazon Prime!).
This allows us to offer you a much wider range of colors & specs at all times, but please consider this when ordering.
USPS is our default shipping method so most US domestic orders will take 2-5 days to arrive. For international orders this does take longer (up to 10 days in some cases), please choose an expedited shipping option from UPS or FEDEX when you checkout if you need parts faster than this!
Any questions on specs, colors, technical details please contact us.