Campy 10 vs. Shimano 10

Quoted post said:

Originally posted by Shamus
Does anyone know if they work together?
I mean Shimano 10s. hub and casette in Campy 10s. levers and derailleur?

DA 10 cog spacing is 3.9 and campy is 4.12.

Does anyone else know something? Has anybody tried it yet?

Quoted post said:

Originally posted by boudreaux
DA 10 cog spacing is 3.9 and campy is 4.12.

For 9-speed, Shimano spacing is 4.34 and Campy is 4.55, a difference of 0.21. 9-speed shimano cassettes and hubs work fine with campy shifter/derailleurs. Since the 10-speed difference is 0.22 (based on the numbers you give), about the same as with 9-speed, my GUESS is that it will also work fine. I have not yet seen any testimonials from people who have actually tried it, though.

--Josh

Quoted post said:

Originally posted by jgatts
For 9-speed, Shimano spacing is 4.34 and Campy is 4.55, a difference of 0.21. 9-speed shimano cassettes and hubs work fine with campy shifter/derailleurs. Since the 10-speed difference is 0.22 (based on the numbers you give), about the same as with 9-speed, my GUESS is that it will also work fine. I have not yet seen any testimonials from people who have actually tried it, though.

--Josh

Yeah, but given the error is spread over 10 cogs rather than 9, it could be sketchier.

Quoted post said:

Originally posted by boudreaux
Yeah, but given the error is spread over 10 cogs rather than 9, it could be sketchier.

9*0.21mm = 1.89 mm
10*0.22mm = 2.20 mm

2.20 - 1.89 = 0.31 mm

0.31 mm is the increased error over the whole cassette, a very small number. I think it should actually only be half of this, since you would adjust your derailleur with the chain on a middle cog.

I guess it's possible that the extra 0.15 mm would be enough to push the shifting over the edge into the realm of unacceptability, but I doubt it.

Somebody needs to try this and report the results! 😄

--Josh