Trying to install Powertap C1 chainring powermeter to my old Cervelo P2c with FSA SL-K cranks.
The crank spider fits fine, all is good until I put in the bottom bracket and tighten the cranks. The bolts (or actually one of them) on the back of the chain ring rub on the frame and the clearance on the others is really tight.
Should there be some kind of spacer between the bottom bracket bearing and the chainring side crank assembly? File down the bolt heads?
I think DC rainmaker mentioned something similar on his blog, so is this a common "feature" or just bad combination of tolerances?
Maybe not a good idea to start renewing the powertrain on a old bike during the race week.....
The crank spider fits fine, all is good until I put in the bottom bracket and tighten the cranks. The bolts (or actually one of them) on the back of the chain ring rub on the frame and the clearance on the others is really tight.
Should there be some kind of spacer between the bottom bracket bearing and the chainring side crank assembly? File down the bolt heads?
I think DC rainmaker mentioned something similar on his blog, so is this a common "feature" or just bad combination of tolerances?
Maybe not a good idea to start renewing the powertrain on a old bike during the race week.....