Nicholson Speedway will be offering the LO206 class. They will be using WKA rules for now. If your using a 2 cycle frame/body than you would follow the 2 cycle set up. You would be able to have your rear tires to not to exceed 55″, you would have to be on a 50mm axle, and a 2 cycle body kit. If your running a 4 cycle kart than your max rear tire width would be 50″, rear axle up to 40mm, with a regular 4 cycle body kit. They are trying to introduce the LO206 as a more economical class for new comers. There will be a spec tire Bridgestone YHC front 4.5 x 5″ and the rears 7.10 x 5″.