I remember the issues with hay bales at FIA/CIK street races when running ICA (direct drives). Hay on the track on those hot summer days with those soft sticky tires and the oil from 2 cycles made lead to interesting situations at braking points before turns, specially considering we used brakes to make karts turn, and with direct drive we actually used to stop the engine for a short lapse of time so grip was kind of necessary so it could restart itself. It was fun though. I used to replace my alluminum tie rods by home made nylon ones cut to right length, used to have spare at different lengths for different setups, and using them even if they could flex more and change setup at least wouldn´t brake when touching a hay bale as was common. It was such a great feeling, dangerous, yes, but felt great having huge crowds watching and pretty ladies coming after race was over since most times we ran during local festivals. Guess I was younger... well, just a little younger, lol.