So I picked up a Raleigh Sprite Ie with the M16 Tranzx mid drive motor. It was a fixer upper. I've got most of the "bike stuff" sorted and when I took it for a test ride today, I discovered that pedaling allows the motor to kick in and move the bike. If you pedal really slow, without much effort, the sensors just motor the bike along no problem, but if you try to pedal hard, it feel like the crank arms just slip and its like the crank isn't really syncing up with the sprocket to move the bike. The way it is, it would be a major struggle to try and ride the bike without any power. This can't be normal. Has anybody else had a situation like this? Please help! This bike is for my wife and I'm bummed it's not working right.