This issue has been discussed and discussed through and through. But I always remember the thread dammit (I think he made it anyways, I can't find the thread). Where he tested it in the dunes and got 62...I thought that was low as hell.
Well I got a GPS a few months ago, and tested the topspeed of my 200s (43.6 mph). Well my buddy got talking about wanting to see the TS of his pocket bike and I thought hmm, I got an R, might aswell see what that is while I'm at it.
Did 2 runs, here's the best of the 2.
74.2 mph.
GPS- Garmin Etrex legend.
My bike has DG full, UNI air and that's it, basically stock. It's an '85 if it makes a difference.
12T front, 20" rears. I don't know if those are stock tire and sprocket sizes or not.