Re: Theoretical way to make a cheap 79cc friction drive.
The stress on the output shaft and the clutch bearings would be increased, that's why I mentioned it up above there. The bearing is designed for the torque load from the chain, then you add the force to get good traction on the tire and you have a load on it from two directions.
If that traction could be gained with a minimum of force on the tire, it might hold up ok, who knows? Some sort of gnurled surface or a rubber sheath with knobby bumps maybe.
What about a toothed belt turned inside out and glued on to the clutch bell...
(you'd need some darned good glue.)
If it works even temporarily some clutch company would make a good one sooner or later.
Buzz zzzzz zzz
Last edited by Slogger; 10-01-2016 at 04:30 PM.