I have these wheels with reds on chinook with caliber 44's and this is a speed machine. It only needs a 1/4 and 1/8 riser which may seem like a lot ,but the board has like a two inch drop. You can carve, bomb and everything inbetween, except fro sliding. If anyone tries to slide i'd like to hear about it for real. post it on youtube... Great wheels!!!!!!!!