Reached 100 miles today on my In Frame Predator Fricton Drive build. This thing rocks. Shows no tire wear or any other changes yet. Tops out at 38mph! cruises 30 very easy. No pedal assist needded for starts.
This concept of a large roller works very well. Gonna change to a 3.5" knurled roller and idler pulley manual clutch just to experiment.
Prolly end up with a Maxtorque bearing clutch later. I also want to try a grinding wheel for a drive roller to see how it affects tire wear and wet performance