this will be something for don and me to work on thru the winter...i'm not even gonna try to pretend it's my "commuter"...this will be for show or official runs only. i haven't measured the yamaha, it runs great, my research says approx 125cc. was asking for help to id the frame...found what i needed to know...looks like i got me a worksman!!! can you say "wild in the streets?" wavygravy...you rock!!