> But I had to laugh out loud when I saw a video bikes crashing yet the back wheel was still spinning. Was that the old chestnut with Hesjedal's crash? Com on,

> But I had to laugh out loud when I saw a video bikes crashing yet the back wheel was still spinning. Was that the old chestnut with Hesjedal's crash? Com on, that's just nonsense. The wheel was spinning after the crash from inertia — that is not only plausible, it's entirely expected, and the case in major crashes all the time. There's absolutely no reason to believe that this was caused by a motor. Besides most of these motors (including the one just found) spin the pedals. So if the pedals continued rotating after the crash, you'd have a point. The ones that propel the wheels directly with neodymium magnets cost like 50k a wheel and are probably a lot less common to begin with, if they're even being used at all.