re: Motorized Bicycle Take a Tip...Leave a Tip
When I first put my kit on my raleigh, the chain tensioner would not stay put. Nomatter how tight I made it, it would be fine for a few minutes, then the chain would pull it, causing it to rotate into the spokes. It only rotated and did not slide.
Problem: Tensioner falls into the spokes under strain.
Solution: Simple-Drill a hole through the tensioner mount and the piece of frame where it is clamped on. Put a bolt through the hole and secure it with a nut. This makes it impossible for it to rotate.
I have had no problems since doing this.