Jim:
I have used Campagnolo road bottom brackets on both my PX-10 and Viner fixed gears. Chain line issues can be addressed by flipping the spindle and/or positioning the chainwheel inside or outside the crank spider as well as by shimming the fixed cog and tweaking the space between the fixed nuts and the dropout.
With that in mind, however, I think a track spindle or the Phil Wood would be the better solution.
Rick Chasteen, looking forward to the Cirque in Kansas City
> I'd like to set up an older 531 tubed Trek frame as a fixed gear road
> bike. I have a question concerning bottom brackets. I'd like to use
> the NR Campy road crankset I have and was wondering about the bottom
> bracket. Would a Campy track bottom bracket be advisable? I'm guessing
> the answer is no since the rear is spaced 126mm, but would appreciate
> any input. I do have a Phil Wood BB for a double chainring set up that I
> could conceivably adjust over to one side a bit. Maybe this would be my
> best bet.
>
> BTW, I have no experience with Campy track bottom brackets (or any Campy
> track specific parts!) and wonder if the track BB spindles are
> compatible with the road BB? If so, would it need the thick or thin
> cups? THANKS!
>
> Jim Cole
> Memphis, TN