Just put 26×14 tires and wheels on our 2010 Rzr 800 and what a difference it makes. The ride is much improved and the ground clearance(lift) is awesome. Should have done this years ago. No spacers needed with the Polaris positive offset wheels I got and the width is only 55". Kept the original wheels and tires for riding the 50" trails in Utah, but otherwise I will be using the new set up.