Brought my bike home Tuesday and went through it with a fine tooth comb. Between working late and going out of town, I finally got to take a 20 mile ride this evening. I also added a Jimbo shield. I talked to Jim Thursday evening and got shield today. If every business conducted transactions the way he does, our economy would be great. Anyway, the bike has a stock sprocket on rear and 15 tooth on front. I was thinking about ordering a DG exhaust and jet kit, but after my ride, I think I might stay the way it is. The previous owner drilled four 1/2" holes in air box and drilled out the spark arrester.On flat ground at 70 degrees with me weighing 180 lbs got up to 70 mph and I still had a little twist left. It was a little buzzy but it still has the original tires with 2700 miles on them. It felt like they were square, but the last bike I owned was a VFR 800 Honda. Still the bike ran great and pulled strong through all the gears. I don't want to get greedy and make changes just to try and get more power when it seems to be maxed out now. Plus, I am thinking about a set of Bridgestone TW 203 and TW 204. Its got to ride better, I think. Also, my son bought me a killer modular Helmet off Amazon , LS2 Helmets FF386 Modular Motorcycle Helmet, for a $110. For this little bike its perfect and the color matches too. Any advice on the exhaust and tires?