I have a sportsman 570 and want to upgrade tires/wheels. I ride in MN. Mostly hard pack trails with occasional mud crossings but no hard core mudding, and it will be ridden in the winter also. I am looking at the Bear claw HTR, Grim Reaper, and the STI Black Diamond XTR. I think all 3 will handle what I want to do. I just cannot decide which one. I am thinking the standard 12" wheels and 26" tires. any tips or help would be great. thanks