As a set of SuperMoto wheels for my XChallenge will most likely be a Christmas present to myself, someone correct me if I'm making a wrong ass-umption here. I'm keeping the dirt wheels, so I'll essentially have two bikes!
By setting the computer to 17" thanks to Max Kool's procedure, I will:
1) have the stock wheel set 21/18 with the stock ABS ring
2) use the speedo ring from this thread on the 17/17 rear wheel
Sounds like both would then be reporting at least close to the correct speed, given that the stock wheel set is being corrected by the computer and the SuMo wheel set is being corrected by the ABS ring?
I'm also thinking I should buy an XTank at the same time... If only to save on shipping...