I just ran my 450 up and down the street once to warm it up. It was the first ride for me on it. Arent these things supposed to be fast? I dont think it's any faster than our 250's are. Granted they are modded, but man I was really expecting more from it. I suppose it's a good thing though. If it was way faster I might have a time adjusting to it. Luckily it has twice the piston so some good modding on it ought to make it perk up.