I'd not considered the problems you've faced with the leg Steve, sorry, but I follow your thinking now. If kicking starting becomes a problem you could always weld a go cart starter nut to the jack shaft and carry a portable drill with you to spin the whole affair & 3D has a clutch "lock" lever available as well...just a thought.Rick, I believe the rear wheel sprocket has 22 teeth and the pedal sprocket has 26. The front sprocket had to be physically small due to where the muffler is. I may have to rearrange thing to allow for a larger sprocket on the pedal crank if it is too small but I'm really hoping the rear wheel will act like a flywheel and help things along.
I would expect that starting the bike will consist of me standing beside the bike holding the clutch in and using one of the pedals as a crank to start it. My left leg doesn't bend enough to allow for me to pedal.
Such is life.
Steve.
I also see where the 3-D is on sale this week only for $100. even.... add $25. extra for the cable and lever kit. Rick C.