Hello, I've been running hillclimbs in Dist. 15 which is Indiana since 98. I am a 3 time Indiana State 2 Stroke Atv Champ and have done decent at the nationals. I agree with locogato there are alot of fast guys on the east coast, Mass, WV, Conn. Alot of the guys out there run hopped up quadzillas. You will also see CR500 motors stuffed inside 250R and 400EX frames. If the hill is not very big, say under 250ft you would want to run 18" tires and a hill above 250 you should run 20". A good site to visit is www.kingofthehill.org. This site has alot of good info on it. Got any questions let me know.