see previous message......well it dyno´d 68hp @11,500..i thought the guy had blow up my motor though because it was popping ...backfiring-flames, pieces coming out of the baffle on the aftermarket race exhaust (which is really SICK sounding on mine i love it, nobody has ever seen this brand exhaust)..anyway he looked over at me as to say i know what im doing and most bikes backfire alittle at max rpm...he was right because about one in ten track bikes that i was listening to race by when they backed off you got a massive shotgun blast explosion... and these are modern bikes..tricked out and not street legal.