Originally Posted by usgser
Be interesting to see what you come up with and at what costs using a freewheeling unlocking hub from a 4WD vehicle since all it does is didconnect the wheel from the axle. Probably be easier to use a system like the little XJ Cherokees w/D30 axle and earlier 83/84 full size Wagoneers w/D44 axle used. It was a vacuum actuated splined collar and a two piece front axle shaft where the collar slides over the inner axle shaft connecting the two pieces. On a bike you could use a lever to slide the collar instesd of a vacuum motor. Be cheaper to get the shaft cut and splined than the machining needed to make an unlocking hub work.
I will post some photos tonight of what i am trying to do .