Thread: Bottom Bracket Help
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Old 06-01-12 | 10:25 PM
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oldbobcat
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Originally Posted by Hammonjj
Hey all!

I'm a terrible mechanic and I have a question about bottom brackets. I'm looking at buying a new frame and the website says the bottom bracket on the new frame is "68mm ENG BSA". Now, I currently have a Quarq Cinqo on my Cervelo P2, which has a GXP style BB.
68mm ENG BSA designates the interface of the bottom bracket to the frame. This is a standard British-threaded 68mm wide bottom bracket shell. GXP describes the interface of the bottom bracket bearings to the crank spindle. For the new frame you simply need to use a BSA threaded GXP bottom bracket such as those made by SRAM and TruVative.
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