Those are aluminum rims, and i would not suggest those only because, if they bend, its a lot of money to get new ones. Go with some RPM or Maximizer rims.
Thats true but it takes alot to bend them when I had my crash with the pole it hit directly on the front wheel it bent and broke everything on the suspension but diddnt hurt the wheel at all. Rpm does make some awesome wheels with a wider offset which make the maxx handle alot better.
Ok I havent been able to find them yet I would suggest checking on ebay do a search for Dynamite aluminum rims. I got luck and only paid 29 bucks for them, I have seen blue ones just keep checking daily and you might find a set I will still look for you. You and also have ebay send you daily emails letting you know what has been newly listed on the search you request