• Centaur + New Campag Pista has worked for me... just!

    A lot will depend on your frame design (chainstays/flex). I've got about 1mm clearance between my stays and the back of the spider. The chainring clearance is ample, and I've no problems with heel strike either. The chainline is accurate. Having given it some oomph, there doesn't seem to be an issue with the spider/stay interface, so I'm not going to bother sourcing & fitting a 1mm spacer between the BB and driveside cup.

    Never really know what's going to happen until you try :S

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