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@ewanmac
So I now have the bike in front of me, and inspired by @amey 's post up-page, I'm double and triple checking for cracks.
It seems that most cracks appear in the area just below the seatpost clamp e.g. here:
Thankfully, I can't see any cracks on mine, although I do discover that the seat tube has a brass shim inserted. A quick google suggests that these were officially supplied by Cervelo in an attempt to solve the issue of the seat post being too small for the seat tube.
I guess the safest thing is to use the shim and make sure I don't over torque the seat post clamp. Unfortunately clicking on the relevant user manual on the Cervelo website just takes you to a generic and recent manual so it's hard to say which of the several listed values to use, but my best guess is this:
Does anyone know anything more about the tendency of these frames to develop cracks and where else I should look before it's too late to raise an eBay dispute? Any Advice to minimise the chances of the frame developing cracks in the future?
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