You seem to have the tire conversion program down pat... Can you help lead me to find a conversion for a 7.50R20? I have the 8.25R20's all around but they rub the frame on a lock to lock turn. Not a big deal but "if" I can find a couple of 7.50R20 steering tires, I'll feel better. So how or what would a 750R20 convert to? Thanks.