Originally Posted by
himespau
There's a chance you might need to buy new wheels, which would make the change pricey.
I am not against changing wheels, but my friend said my wheels are identical to what came on his SL5 so it likely is not a problem and worst case we could swap (he changed to carbon wheels). My understanding is that the 8s cassette uses a spacer to make up the difference between it and the 9-11s. Wheels were another upgrade I was looking at anyway, doing that at the same time would delay me because of budget, but definitely not a deal breaker.