Thanks everyone for the heads up here. Thought about ordering one of these because of discount but will not now. Fact that Rad will not acknowledge this issue widely makes me hold off purchasing. Imagine a new car drive train failing soon after purchase. That model would be recalled immediately. Rad should use the auto industry approach to safety and at least issue a technical bulletin on the issue. This is a potential safety issue and I won't compromise safety of my family with one of these bikes.