what would be the problem with putting knobbies on the 17" SM wheels of a DRZ, and then using it for Dual Sporting? I am short and figured instead of lowering a 400S, i could get a used SM and just put the knobbies on it. I wonder if the huge front disk would get trashed, and would the smaller front wheel hurt me in the end as far as handling the ruts and washes. What would YOU do? lower a 400S or use a 400SM?