i think there about 1 1/4". i know the xl's are the same as the xtr's. i think you'll like the m.lites.

 

i sure have nothing bad to say about the mudlite xl's and maybe if i would have ordered 27's i would have been better off, but after getting showed up pretty bad with my buddy i just gotta try those tires. i did order a 2' lift should be here next week so i hope i like them guess if i don't i can always put the mudlites back on.