I might as well repeat it before someone else does... the "search" function is your friend. With that said, fitting a certain size tire in the wheelwell also depends on wheel offset. Some 15" wheels may contact the calipers as well. You can crank up on the torsion bars to lift the front of the VX about 1" to level out the stance and give more room for a little larger tire and then still you can trim out some of the cladding like many of us have done. Welcome to the addiction!!! And really, there is so much info stored here, you should search around to familiarize yourself with as much as you can - not to mention, it's fun!