ixikarlixi

Am thinking of getting a 125cc trails bike gas gas or a beta. The plan is for it to be road legal as I can ride on road to a spots to use it. Questions I have: A. What speed would a typical 125 be able to reach and sustain? B. How much damage would be caused to a engine, by using it on road? C. Would there be any gearing changes I could make, to make the bike a bit more road friendly. If I got a beta I would be after getting the long range tank and seat setup. Is there anything like that for a gas gas? I know I have asked a lot of questions, I've been trawling the Internet for the last few days and can't find the information I was looking for. I hope I have posted in the correct forum.