I race in the 30 beginner class and it is clear that I will be moving to intermediate next season. The problems I need to weed out is stalling. If it were'nt for stalling I would be going home with more trophies. The stock rear sprocket is a 49 and I went up to a 50t which seems to help a little. I turned my idle up and this also helps. If I could stop locking the rear wheel up, it would help alot. But until I get use to using the front brake more I need a quick fix. Someone made the suggestion to go up another tooth in the rear. Plus this may help in my holeshot. Can anyone give me suggestions on equiping my bike in solving this issue. Or, can you share your bikes setup.