I have a set of polaris aluminum rims from an 08 i believe, also picked up a new quad that came with the factory steel ones. Im deciding whether or not to swap out the steel ones for the aluminum ones. Is there any drawbacks to the aluminum?? i do go through some pretty nasty stuff. i was going to weigh them both as well to see if there really is any difference there. The only reason im undecided is the 08 rims are used and have a few scratches and i'll be putting them on a brand new bike.