Don't forget to buy a swaybar. It will really help to keep the left front down. I just switched to a banshee from a quadzilla so set up is all new to me too but I took second place with stock tires. my first race on it. Also keep in mind that those tires are almost 100 each so if you buy em new buy a medium compound. I also prefer stainless brake lines so you have more control on stopping. I also use good wheel and axle bearings and an oring chain for less resistance. I think that every little but counts. But i also weigh around 270 so I need all the help I can get. If you look on ebay or ask around at the track you can save a little money. Some spare sprockets are a good idea too. And I think nerfbars are a must. At those speeds you don't want someone getting into your feet. I know this won't make you win but I hope it helps a little.