Our local state run OHV park has seperate motorcycle and 4wd areas (CA) The park officials and 4wd groups have agreed to allow trials bikes in the 4wd area but do not want the MXers in there. The difficult part is how to designate the area for 4wd and trials only. Enforcement could be a major issue. Does anything like this exist elsewhere? How is it handled? (So far, Trials specific tires seem to be the best choice.)

Could try making the entrance a 6 foot step.

If you use the "Trials Specific tires", what do you do when a mx bike shows up with trials tires? I know of some riders here that trail ride with trials tires.

No seat and a muffler that works!

How are trials bikes and 4 wds similar that they are given the same trails to ride and why the heck would you want to ride a trials bike down a dirt road....boring.