I now have two bikes, as shown here. I was leaving my driveway going for a ride on my bike, which is about four years old. (I replaced the battery once.) Nothing unusual until I rolled over a pine cone after adding throttle and it seemed like it stalled because of the pine cone. I removed it and proceeded to go but the motor wouldn't go. Back in the garage, I was going to check out the throttle with the throttle from my wife's bike, hers is the exact duplicate of mine. That didn't work, and then her's didn't work. I checked the wiring on the controllers, even used a spare controller. Nothing worked. Neither bike would go. Switched throttles, switched controllers. Nothing. Voltages checked ok with a voltmeter. Is there a way to check the wheel motor without the controller to see if that's the problem? It's hard to imagine both bikes, the old one and then the new one going out at the same time. I ordered a new controller and a new throttle. Just to make sure. Does anyone have any suggestions? Please let me know, maybe via my email/ firstname.lastname@example.org as well as here. Thanks in advance for any advice.