I'm back to the dirt bike scene after a 20 year hiatus (new KX 250). Is it OK to use tire sealants such as slime? I'm not racing or anything...just goofin off (2nd childhood probably). I would never use this stuff in my crotch-rocket...but it would seem on the surface that it wouldn't hurt anything and would same me some money (lots of thorn trees where i ride). Whats the good word?