So I am looking to begin racing this next year and i have a 2007 rmz 250 that is all stock. DOES NOT have any aftermarket enginge components, exhuast, etc. I have never raced before but have been ridding on some rough trails and been training and cyclying to help prepare. I was just wondering what would be some good begginer mods to give me an advantage over the other riders in my class. Working with a slim budget as im paying for my school at the moment as well. So im looking for a good budget build for my bike. Would also like to get some setup ideas thatd help out as well. Im about 5'8, 5'9 ish and weigh about 120-130 pounds. Not sure if thatll have any affect on the build. Just let me hear some of your ideas and advice everyone!