I just got new 2015 900S and I looking at set of 14" wheels sporting some nice 30" rocktanes off a 14 1000 Xp….will they fit or do I have to modify ?

I just got new 2015 900S and I looking at set of 14" wheels sporting some nice 30" rocktanes off a 14 1000 Xp….will they fit or do I have to modify ?