I'm running some cheap Cheng Shins or whatever, not sure if they're stock or just thrown on there. I plan on upgrading to Kenda Bearclaw 22-12-8 rears and Artrax MXT 22-7-10 fronts when mine wear out. I'm a bit weary of the Artrax's for a few reasons, never heard of the name before, the price is wicked cheap, and the reviews say they come smaller than advertised. Which would be a bummer 'cause I don't want my Blaster to look like a tractor XD. I've noticed a lot of people running Maxxis RAZR's, which I would too if they came in 21 or 22's. My dads Blaster is running Maxxis All-Trak 22-11-8 rears and Carlisle 4-Max 22-8-10 fronts