Help with BB info on 2012 Cervelo R3: Triathlon Forum: Slowtwitch Forums

Help with BB info on 2012 Cervelo R3

Feb 3, 21 21:16

Hi,
I have a 2012 Cervelo R3. It has the press fit BB. When I got the frame it has BB30 bearings already in it. I am using a dura ace 7900 crankset. I purchased bb cups sizing it down to 24mm. I went to put the cranks on only to learn that the non drive side axle isn't long enough. I ask kindly what BB cups do I need ?

Thank you,
Gene

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Re: Help with BB info on 2012 Cervelo R3 [ginofairplay] [ In reply to ]

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cyclenutnz

Feb 3, 21 21:27

Post #2 of 5 (534 views)

Either a BBright adaptor to size down the BB30 bb (it sounds like you got a BB30 adaptor) https://wheelsmfg.com/...-shimano-cranks.html
Or a BBright 24mm specific bottom bracket https://wheelsmfg.com/...no-cranks-black.html

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Re: Help with BB info on 2012 Cervelo R3 [cyclenutnz] [ In reply to ]

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ginofairplay

Feb 3, 21 21:33

Post #3 of 5 (526 views)

Thanks I'm guessing the first option would work. Like I said it came with BB30 bearings in it. When I put my dura ace crank in it way too big. So I bought some dura ace 24mm cups but won't work. Thanks, Gene

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Re: Help with BB info on 2012 Cervelo R3 [ginofairplay] [ In reply to ]

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cyclenutnz

Feb 3, 21 22:29

Post #4 of 5 (512 views)

The thing with the BBright shell on your frame is that the NDS is built out by 11mm. So if you fitted a standard BB30 adaptor you're 11mm too wide. The BBright specific adaptor is the same as BB30 on the DS, but nearly nonexistent on the NDS.

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