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Mixing Shimano and Campy(5 posts)

Mixing Shimano and Campyptodd
May 24, 2001 11:20 AM
I have two bikes, one outfitted with 9 speed record and one with Shimano Dura Ace. I'm trying to knock some weight off one and was considering mixing the components, specifically the drive train. Basically I'm wondering if I can replace the Campy crank with a Dura Ace crank. I like the Campy's shifting better so I want to stick with that, but the shimano crank is considerably lighter. I intend to keep the Campy rear derailleur, cogset, and shifters. Is it even possible to just change the chain rings on the Dura Ace to Campy? Or is it a problem of spacing? Any help would be greatly appreciated. I just want to have some clue before I start dismantling things. Thanks!
re: Mixing Shimano and CampyAndy M-S
May 24, 2001 12:56 PM
You can use the Shimano cranks on the otherwise Campy bike, no problem. Trading chainrings will NOT work because the Campy and Shimano cranks have slightly different bold circle diameters (BCDs); 130mm for Shimano and 135mm (I believe) for Campy, so the Campy rings won't work with the Shimano crank and vice-versa.
re: Mixing Shimano and Campyptodd
May 24, 2001 1:36 PM
Thanks for the input! I'll give it a try.
re: Mixing Shimano and CampyDMoore
May 24, 2001 4:54 PM
You'll need to swap bottom brackets as well, even if you have the square (not splined) Shimano bracket. Although the spindles have the same taper angle, the size is slightly different and they're not compatible. If you use the Campy crank, you'll need a Campy b/b as well.
re: Mixing Shimano and Campytkohn
May 24, 2001 8:43 PM
I believe that the angle of the taper is slightly different. Reguardless, you will need to use the same brand BB.