Not really. There’s surprisingly little drag. And it makes the lights a lot more reliable in winter.
I agree. I wear my leather jacket and motorcycle helmet when I ride my e-bike on the open road.
Yes, I was assuming use of the electrical system to reduce the amount of effort (i.e. calories) expended by the rider. You’d still obviously need to put in some effort (unless you’ve got a throttle, which some jurisdictions allow) but for every watt of pedal power you replace with electric power you’re theoretically reducing emissions.
This article has a relevant graph:
20mph is more or less where the odds of death when being hit by a car start to go up. Now, obviously this data is for cars, not bikes, but it is still probably vaguely correct.
Also, consider, 20mph is human sprinting speed. We evolved crashing at that speed. Stands to reason that we are probably fairly robust to the forces that result from running into things at that speed (also our reflexes are tuned to keep us out of trouble at those speeds). Above that, the evolutionary warranty is invalidated (we evolved crashing onto generally softer, rounder surfaces… so we are already pushing it).
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