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Discussion Starter · #1 ·
I have a 2009 R3 that I love and just bought a 2007 RS frame to build up. I know this is before they moved forward with the BBright bottom bracket. Do you guys know what bottom bracket to use?
 

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Discussion Starter · #5 ·
I only searched Google, but found pictures like this:

Which is BSA threaded.
2008 Cervelo RS - BikePedia
"FSA Mega EXO"
Yeah. brought up the "horror stories" for me too. I am more inclined to believe that some of these are frame flex cracking the paint and Cervelo is a customer service brand so they replace the frames for the folks. after all they are not cheap. My R3 has one similar to this and it really looks to be just the paint. I ride it daily with no noises, the crack does not expand and the bike is a great ride.

I also saw the BikePedia link in my searches. Is BSA the BB or is Mega Exo? I know for sure it is 68mm and english threads.
 

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'brifter' is f'ing stupid
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'BSA' means English thread. 68mm wide. You can use Shimano, SRAM, FSA (Mega Exo) or any other English thread bb/crank you'd like to use.
 

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Discussion Starter · #7 ·
Thank you, you are correct. This is the answer from Cervelo:

Mark,
Thank you for contacting us. SNRSC07M00336 traces to a 54cm, 2008 RS frame. SNR3C07M00671 traces to a 54cm, 2008 R3 frame. Both frames have a 68mm wide, English-threaded (BSA) bottom bracket shell. The bottom bracket you select would depend on what type crank you decide to use. Options are Shimano Hollowtech, Campagnolo Ultra-Torque, Sram GXP, and FSA MegaExo.
 
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