Join Date: May 2007
Bikes: KUUPAS, Simpson VR
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Originally Posted by forensicchemist
actually it wouldn't....I'm running full campy 10 speed with 9 speed shimano wheel/cassette.
Again we come back to what is acceptable. I rode behind yet another guy, on Saturday, using a Shimano 9-spd wheel with a Campagnolo 10-spd group (Centaur). He had some other chain on there and his shifting worked (sort of) but it was louder and more finicky than any of the others in the group regardless of Shimano, Campy or Sram. I've see this so many times now that all the anecdotal stories you can heap on me won't outweigh my own anecdotal stories.
It will work but there is a performance decrease once you start using Shimano chains on Campagnolo and visa versa. Do you really believe that it is so easy to make a chain and, other than materials (durability) they are all pretty much the same? It may seem that way but I assure you it isn't. The entire group is designed around the chain and it's limitations. It is the single most difficult component to design and manufacture (all things considered).
I used to test chains for KMC (they make most Shimano Chains). I probably used 20 different chains on the same DA group. The differences at time were subtle but occasionally there would be a vast improvement or an absolute disaster when I would change chains. To the naked eye the differences would be hardly noticeable but, during the stresses of riding, the differences would make themselves clear.
I also tested a KMC Super Narrow chain designed for Campagnolo. It lasted a fraction as long and never shifter as smoothly during a sprint or climb when new, than the record chain I had put 10,000km on previous.
I even gave one to Campagnolo for their own, in-house, testing. They reached the same conclusions in the lab that I found on the road. They were not impressed.
To sum: Chains matter. Mixing chains will usually work fine. OPTIMUM performance comes from staying within your own brand (whatever it may be).