This is a video of a front bike failure, although at high speeds it appears like a failure you would never expect, The frame appears to break. With all the extra weight and speed of ebikes, might be a good idea to inspect the welds there http://youtube.com/watch?v=ZNwmpLPhoHw
Cracking near the head tube is a common mountain bike frame failure mode. Notice how newer frames have gussets and various reinforcing around the head tube joints.
Looks like his mountain bike shocks developed a deadly resonance in the slow motion playback which finally broke his front fork. It's amazing how much damage you can do when you find the resonance frequency of a material.
Looks like his mountain bike shocks developed a deadly resonance in the slow motion playback which finally broke his front fork. It's amazing how much damage you can do when you find the resonance frequency of a material.
I remember seeing a video of a bridge resonating, and the engineer, very aware of what was going on walking down the middle of the bridge. The bridge completely destroyed shortly after.
[ I remember seeing a video of a bridge resonating, and the engineer, very aware of what was going on walking down the middle of the bridge. The bridge completely destroyed shortly after.
