I'm headed to the dunes in a couple of weeks and bought a paddle tire for the occasion. A couple of the guys I'm going with said that I may have to add an extre link to my chain and move my rear wheel back in order to achieve proper clearance. Has anyone ever used one of these on a KDX? How can I expect this bike to perform in the sand with one of these tires? Are the mods listed above necessary? Thanks in advance for any responses.