The 275/65R20 Michelin LTX A/T 2 has a diameter of 34.4", a width of 11", mounts on a 20" rim and has 606 revolutions per mile. It weighs 60 lbs, has a max load of 3750 lbs, a maximum air pressure of 80 psi, a tread depth of 15.6/32" and should be used on a rim width of 7.5-9.5".