To me why even have a Mini Bike if it isn't for off road use. Let the riders ability and the power that your bike has set the size of hills or Rugged Terran you ca and should want to ride on. Other than that is mini bikes made for drag strip style of how fast can I go before this motor explodes. Or how much money can I put into an engine to impress the crew.
Mini bikes were made to be the dream machine that kids who wanted to be a Malcolm Smith or a Steve McQueen could go out and give it a whirl.
Sure too many were just too light weight for much off road use bikes like the Taco 22 the Big Bear Scrambler they were just to small with the 4 and 5 inch wheels.
I sold the Rupp line up with the Roadster II and Scrambler just about the tail end of the Rupp line up of the rope start mini's. I sold their Mini Cycles the RTM 80 & 100
The Powell Super Challenger was not a kids bike but it often was a family bike big enough for the Father and Son's to share.
But we all seem to have our own little sections of this forum to keep track of I don't do much looking around in the Doodlebug section but there has been a lot of good advances in this new mini bike mostly correcting the basic fault's that occur when the price is the quality controller. Like the Cat and the Taco and big box stores all scampered to have the cheapest bike out there.
Brands like the Bonanza might have had their bottom line bike, but they also had the quality machines and supported them in racing and advertisement.
Steve