12 in would be great in a strait line and if you had something more than a ~18hp blaster, or on a 4x4. 99%of the tires on the race 450s are only 10in wide. and 11in wide if its a 20in diameter. too much of one thing takes away from another.. aka too much traction = less power
ya i did have them on a higer horsepower quad. but i like them for my type of riding.
and it wasn't a "sport" tire
it was a trail tire, but i can not remember the name of them, they were on the quad when i got it.
I do a lot of trail riding. Right now though, I just tear it up in the field doing whatever I can do in the snow.
I want a tire that can put up with anything, and that will last me quite a while.