I went with 245/75R19.5 tires that were the same height as my 275/70R18 tires I had previously so I could use one old tire as a spare. I chose the LRH PR16 version of the tire to get the stiffest sidewall even if I didn't need all the capacity. You have a choice of three 19.5" rim manufacturers: Rickson steel rims rated at 5000 lbs each, Vision aluminum rims rated at 4500 lbs each and American Force aluminum rims rated at 6000 lbs each. Any one of these will handle the job, so style and price can dictate your choice.