I run the class with a sprinter so I can help. I run a 40′ NCD nose, and my front wheels are just barely tucked in so it all depends on how narrow you are. For the pipe, the RLV L4 is what I run and just about everyone else will be too in Yamaha, so that’s the good choice. You may want the L3 if the track has less straightaway though. And for tires, you have all sorts of options. My choice is a little unorthodox, as I run MG Yellows with their 6′ tire in the rear. It’s done me well so far, so that’s an option.