dura ace cassette problem?
I have a Dura Ace 7900 10sp casette on my scott. Problem seems to be when the lock ring is done up tight (and it is tight) there is still a very slight bit of play between the cogs. I have the small spacer on the hub, then the casette with the right spacers in between etc. When you get hold of wach cog you can rock it back and forwards slightly and from left to right maybe half a .mm ?: any ideas? what could be wrong? a guy said you have a spacer missing but I dont think i do? any ideas welcome?