What is the biggest best Mud/Trail Tire i can put on my 2000 450s without any modifications no lift kits or anything.

 

26" Mudrunners or 26" Trailbreakers if you want a smoother ride.

 

I think it would be 27in. TITAN 589's. Smooth riding and a very good mud tire.

 

27x12x12 Bearclaws fit without a lift on ITP rims. The rims have a slightly different offset than the stockers.

 

Will 27" tires fit on a 450S without a lift kit? I didn't think they would.

 

I know 27" Mud Bugs fit with no other modifications.

 

i've seen 27" Claws on a stock one at a dealership. They fit, but not by much. I don't know if the fenders would hit with the suspension fully compressed or not, but they did fit under it. Keep in mind that Claws are the size that they say. Other 27" offerings will come closer to fitting than the claws will.

I think you can get 27" tires on there. I know for a dead solid fact that Blackwaters will fit fine, but then again, Blackwaters suck, so I guess that is a moot point.