i'll try to make this as short as possible,,,i bought this banshe from a used cycle shop. guy didnt know shit about the moter and said he didnt have the previous owners #. although he said it had a 410 stroker motor in it,,,thats all he knew. guy who had it didnt take care of it for shit,,,i got it on layaway and payed a bit much for it,but it was a layaway deal so i took it being short on cash. $2250 plus tax. oil was black, foam air filter was a hard piece of dirt basically,,bike started first kick tho and ran great. fmf fatty pipes,stock head,kein carbs,dont know what size,how can i tell? so anyway,,to the point of the story, i finally got some outsu stock 400ex tire, which hook great on a banshee at about 4 psi. its alot faster than my last piped banshee for a fact,,,changed oil,new k&n 2 into 1 air filter,no lid. i cant even launch this thing in 2nd without it going straight up in the air! no matter how far i lean forward( i weigh 190) it dont matter straight in the air. will whellie 3rd with no effort at all,,4th will wheelie with a little effort. so you guys think this thing has a 410 stroker or what? the motor will come apart this winter and i will know for sure just wanna ride it for the summer. oh, and, compression is at 125 psi both sides with stock heaD, trottle wasnt wot tho,,,i forgot,,,its been awhile,,,lol. what u guys think? sorry for the long post