but i ordered them from 

http://www.r2hobbies.com

it was about 20 for both a set of rims and tires, well worth it and only downside was because they shipped from hong kong it was 2-3 weeks until i got them . 

pre warning...once u get a little grip it will go MUCH faster on any surface and when u hit something it does break the body lol...i cracked my front end up bad with a hit on the curb but i will be starting on painting/installing some HPI bodies i bought for it.