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Allan wrote:
Just a short query here about the spacer on the BB issue, why do you need to fit it in the first place???. Why not just screw in the right cup till its in the correct place necessary to give the chainring clearance leaving the 2 or so mms required between the cup and BB shell face and then tighten the left side up against it to the correct specified torque.
Tightening the RH cups lip against the BB shell face is a redundant issue since the torque setting of the two cups pressing against each other is what keeps the unit from backing off and becoming slack.
You can then fit in a simple 'O'ring of the correct size into the space to hide the look of the threads showing between the RH shell end and the RH cup.

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With Shimano bottom brackets (I'm not familiar with Campy) The right (drive side)cup *has* to be torqued to the proper specs against the BB face, as per Shimano specs. There is no lateral adjustment built into the installation, hence the need for a spacer. If you left the right cup 'dangling' the 2mm as you suggest, the 10mm or so of remaining BB threads in the BB shell wouldn't be enough to prevent problems with the bottom bracket.

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Steel lover, but then I like Ti with carbon too.
Licensed bike geek.

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