I wouldn't rush to replace your wheels with factory replacements.  I think this is one area where Redcat attempts to keep the price low for customers.  My Tornado S30 wheels lasted about 15 minutes the first time I brought it to the track.  Two of them completely split in half.  The plastic they were made out of was very brittle and unforgiving.  Find some after market rims from Pro-line or other companies.    A  2.2 size rim will fit.  Just make sure they have some offset to them.  Don't get a zero offset rim or they might rub.  After replacing your wheels and tires and tightening everything down, you'll have a lot of fun with that Volcano with very little down time.  My son's Caldera 10E has only broke twice since July of last year.  I've replaced the steering knuckles with aluminum and a spur gear 2 months ago.