Good call there, Heavy. I think Kenda does a similar thing with their 270's as it appears to be a copy of the popular IRC GP-1 tire.

 

i looked at my 09 it has 605's from the dealer.

 

well, finally got some time...ok, i'll admit it was work time lol. I had my partner come down and help me put the front trackmaster on. I used ultra heavy duty tubes and a rim lock and the TM. Got it all put together and took a quick ride. I only went 30mph, but seems to be alot better on pavement than I thought it would be. It was my first ever tire change on a dirtbike. I'll admit it wasn't bad. So far i'm liking my TMs

 

the best combo for off road oriented is a kenda trakmaster up front and a michelin ac 10 on the rear// street legal// not too bad on the street// good traction off road// but the ac 10 will wear fast on the street