The best deals are on used tires/wheels. Some of the more popular ones are Hostile and Proline. I avoid HPI tires. You can pick up a used set on ebay for 80-130 usually but a new set is just under 200 usually. You can stick with stock to save $. I never had a prob with MT tires/wheels plus the MT ones are the biggest in the biz but they do slow the truck down a bit. If you run 5b/5t wheels you will need 5b/5t rear hexes at all 4 corners of the ramp. Im waiting on parts to arrive to guinea pig the proline 40 series conversion but thats experimental cuz those are for 1/8 scale but it has been done on the 5b though.