Just put some 26"x9.50x12 - 26"x12x12 Super Swamper Vamps on the Eiger last week and tried them out at Bucklesberry and they get good traction in mud, ride good, and dont take alot of power out of the engine. Although you can tell a diff between the stock and Vamps in mud when you have to use the throttle a lil more to turn them over in high so i just use Low range and it turns them over with ease. I was thinking about putting a lift kit on it but really havent decided yet, i have atleast 10.3in of ground clearance now but sometimes that aint enough!