Tire Spine, a flat-prevention foam insert that is basically a run flat solution for atv's, either racing, or military, for continued mobility while on the battlefield or Baja race.

Doesn't absorb water, and keeps vehicles useful until the end of the race stage, the end of the work day, or end of the battle... that's a damn good thing.

if you get a flat while harvesting, that entire day is shot, right? If you get a flat during King of the Hammer... you're probably out of the race, right? If your Rzr gets a flat while enjoying the weekend out on the trails? And you have to either limp it back to the trailer, or walk out?

Seems like a sweet piece of insurance to me.

http://www.tire-spine.com/index.html