9 ,10 and 11 should all fit on the same hub. it was the original 8 sp exa drive that was different.the only thing I don't know is that you might need a spacer behind the cassette,or the total cassette for all is the same width,but the spaces between the cogs is smaller. hope this helps pete,or just put some slicks on a mtb and go the shorter route.in my opinion it gose through the nicer part of warwickshire
I think I'm giving up, thanks for the kind offers but I'm afraid it's too late in the day now - if I'd not been in work today I'm sure I'd have got something sorted in time, but I'm just knackered now so going to get some sleep and hope my eye's stopped twitching in the morning!
Thanks again and have a great ride - I should have guaranteed you some sun at least!
Dave, it's really kind but I'm falling on my sword, it's been a hell of a few weeks and I'm going to get a long sleep and spend the day getting my shit together.