No I don't have all the answers I'm willing to take advice always willing to take advice and gentlemen I believe in my bird I told you I had it up to about 170 still had throttle left and I was still increasing speed when I had to back off some motor work during and sprockets will get me there my speedometer is not that far off I've had a friends of mind clock me with their vet they're better than others Dead on I was within 1 mile an hour of their speedometer biker build off the showroom floor to 187 maybe your guyses speedometers are off the other way and you just don't know it but again I believe my bird and I'll take some advice