Originally Posted by
bikeaday
Thanks guys for all the advises. Might go with a 12-34 to stay within the spec. I see that it is only available with Shimano XTR. Can't find any Sram with 12-34 range. One more question on XTR cass. Is it compatible with standard/regular Shimano hub ????. If I'm not mistaken, years ago, XTR and Dura-Ace had their own hub, I suspect that it has changed but not sure.
Early 10 speed dura ace freehubs had deeper/taller splines than standard shimano freehubs but they dropped that shortly afterwards. You can still use an early 10 speed cassette with the deep grooves on a standard shimano freehub, but not the other way around.