I'm trying to standardize my small fleet to be 10sp. The question is can I use a Campy 9 sp ft and rear der plus crank with a 10 sp cassette and brifters? I know the pulleys are the same for 8 - 10sp it's just the spacers and bolts are wider on 8/9sp. Is the thinner chain going to affect shifting badly or should I spend the extra money for 10sp ders?
I know Shimano doesn't seem to have a problem with it. But, Campy being Campy is so darn fussy about that kind of stuff. If there's anyone with real world experience on the swap your help would be appreciated.