Started mounting my Dirt Grips on my new bead locked wheels. its pretty easy to mount wheels on these things. longest part of it is the criss cross bolt torqueing process. im very happy with the results. tires are 38-15.50 16, rims if you didn't see them in a earlier post a couple of weeks or so ago are 16x12 weld SS II's that i had bead locked by OMF. i didn't buy there bolt "domes" that protect the bolt head from damage cause there 30 bucks per wheel for 12 that you put under every other bolt. i bought a 6 ft piece of 6061 aluminum for 30 bucks that will make enough for almost 10 wheels, so i will have plenty extra as they get damaged on the rocks. there 138 lbs, the rim was 30 lbs. is that a heavy tire?