Motorized mountain bike in Oregon

Follow the link to the Laws and Legislation sub-forum. There is a thread for almost very state in there. I saw 2 or 3 for Oregon. There is a template on this site somewhere which will give you the dimensions of the China girl motor.
http://motorbicycling.com/forumdisplay.php?f=17

Hi we have a loose club here around salem look on facebook at the Salem Motorized Bycycle Club page. I don't do FB any more so I don't know what they are up to. Law wise we always ride out on the farmroads. I am the only one that got a license plate and insurance. (Since expired) we don't ever get hassled as a group out in the sticks or if we ride to the steam up in Brooks in the summer. But i used to ride right through downtown a lot Nd got the stink eye from cops more than once. Thats why i got tags(big pain in the ass but possible with the right equipment) if u r riding in Portland they won't bother u unless they are really bored or u r riding like a maniac. There are guys there that ride everyday and they said they never get hassled. We ride through lots of small farm towns like Jefferson all the time and never get hassled.. good luck on your build..

It a very good idea to look up your local laws on motorized bicycles/mopeds many states consider them to be the same thing. Having a legal build is a good thing. Still in most places riding habits are what's most important. Fully obey all traffic laws at all times. Ride as if you were on a motorcycle. By doing this you should avoid any legal issues.