I have done of mods here and there but the best thus far, and the cheapest.... I geared down more. I am running 13/45. before that I could bearly power wheelie in 1st now (14/45) I can even get it up in 2nd in the grass (just spins in the dirt). I wanted to do 14/48 but the damn nuts are so tight on the rear sprocket I couldnt get em off, the bike had new sunstars front and rear and a moose chain when I bought it. He must have torqed the hell out of em. The only problem is I think the 13 might be too small be cause I think the sprocket retainer might be touching the chain, I will ride it a couple of mile and then take it off and look for wear. I can now ride in tight trails in 2nd gear, the rear wheel breaks loose at will and EASY 1st gear power wheelies. I dont really ride on the highway so I like the acceleration and torque at the cost of top speed. I think I might try 13/48 if I can get the back sprocket off then I will have motocross like gearing, I will probbaly have to go to a full knobby to ride in the dirt then.