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ZOEY said:
Maybe he's saying that he tried the 40T and it won't fit because the chain is too short.
If so, thats strange....After I posted my reply I went and double checked with 2 sources. Both concured that you can go up 2 on the rear without buying a longer chain.
[/ QUOTE ] OK.........Thats kinda true, Here is the deal from the local (Louisville) dealer. Monoposto and Biposto bikes have the same length chain. A mono has a 36t rear, biposto a 38t. So if you have a mono, yes, you can go up to a 38 without a new chain. If you have a bip. you are screwed. that chain will never stretch that much, I had to add 3 links when I put on my 40. sorry Herb, I should have told this when you asked the sprocket question. :frown: