I have a brand new set of Bridgestone Dirt Hook DH15 ATV tires in size AT24 x 8 x 12 for $160. They are original equipment on Honda TRX350, TRX400 and TRX500. Here's a link so you can see what they look like.
http://www.ridegear.com/rg/item/F-22107/Bridgestone/ATV-Dirt-Hook-Tires-DH15-Honda-TRX350-Rancher.html
My cell # is 618-806-5200 (Freeburg, IL)