Just dig through Srb2kart's files, find maps.kart and load it to 2.1. Everything works in race mode, and I would send you a file for 2.1 of it but I'm honestly not sure if I can so...
But if you mean for 2.2, you're going to have to port it. Because if you just load it, some levels may work but the rest will crash you're game. I have no idea how maps work so I'll leave that explaining to an expert.