Re: Friction Drive Kit Questions
There is too much pressure on the bolts. It's not that the pressure is unwarranted, it's that the little bolts aren't strong enough for the needed amount of pressure.
My case is a bit different though. The design of my frame has the fat part of the seat stays going almost all the way to the fender mount holes. That meant that the flat motor support couldn't fit flush against the frame. I had to get longer bolts and put nuts as spacers between the frame and the motor support. Even though I made the nuts tight so that there would be no movement of the bolts, it was just a weaker way to mount the motor support.