Yeah like i said bike has to be worn out lol...but it had one big butted frame. I never saw the cable going right to the hub before, but I have seen a few three speed bikes with really wimpy frames but they had multiple sprockets on the rear.
You know I have learned enough about chains to know I can use a rear coaster wheel and a front mtb crank by using a coaster chain on it. Now If i were going to build the ideal bike, I would get hold a mountain bike frame. big and strong, then take off the rear wheel since I'm never going to use gears when I can throttle up. Add a new 20" coaster wheel for the stability and braking control. remove the rear brake, but leave the control cable to use on the clutch. Use the shifter as a thumb throttle instead of that plastic thing that comes in the kit. I think that would about do it. In other words the bike I have now but bigger stronger and will all new parts.