Coldsetting is a mild description for what I did. In stock form the frame almost worked. To get a 2.125 Stumpjumper knobby to live in there my method was to clamp the BB shell in a vise, then pry the dropouts apart a couple more inches, then drive a 2x4 up between the chainstays and then re-close the dropout spacing with that wood in place. It was not pretty and the chainstays had kinks in them, but I began with a frame whose seat tube had been crushed in a workstand and it was FREE so I figured I had nothing to lose by trying. I rode it for a couple of years and gave the frame to a friend when I got a Cimarron frame and transferred my parts over. The A-D frame later gave out when the seat tube cracked through just above the bottom bracket.