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I think Damon is right. My dad has a converted Yamaha with a shaft drive ADC motor which is geared 3/1 to the rear wheel which is way to high, but the motor may still not be running horribly inefficient. Cruising at 50 mph its sucking alot more than 40 amps, probably around 100+, and it is running on a 72v system. Just curious, what kind of range do you get? From my estimates your bike probably gets about 10-11 miles range, is this correct?(snip)Andrew,I think your right on the range. I just now have started the road testing of the parts that i have put together. From the initial testing, 10 miles is looking right. (that was the goal, but done at 50mph) I dont think that it will make the goal now. Maybe at a slower speed, a little more testing is in order. I am still breaking the batts in, so it may be a little either way after a couple of runs.When i needed a front sprocket, i went to the supply house and asked. All they had was a 14, and well the rear was what came with the parts donor bike. I figure a gear change is a good place to start.I was thinking about your question. How about a diiferential of some sort? Each motor could drive the "axles" and the shaft drive on the driveline. Of course the reduction would be only the one choice, what ever the diffy is.
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