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schoentoday at 3:21 AM2 repliesview on HN

I'd like to think I'm about as car-skeptical as your average person with no driver license who just got back from taking three forms of transit home from an all-day recreational road cycling event. But I'm a bit nervous about the speeds of some e-bikes.

A friend of mine spent a week in the hospital recently after crashing his new e-bike almost immediately after buying it. One interpretation of his accident is that he didn't have some of the right instincts for riding a bicycle at that speed.

I don't actually have a clear sense of the breakdown of risk attributable to the different factors of lack of appropriate cycling infrastructure, lack of appropriate rider training or experience, lack of appropriate rider expectations, or inherent safety or stability problems of some designs. My friend whom I mentioned above said his doctors told him that they had been seeing a lot of patients who'd crashed e-bikes (as well as electric mopeds and electric skateboards) at speeds that produced fairly serious injuries.


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cassepipetoday at 12:05 PM

That is a regulatory issue and a name issue. Those are actually motorcycles. In Europe e-bikes are capped at 25 km/h (the electric assistance stops at that speed).

So your problem is (electric) motorcycles that are (legally?) accessible without a motorcycle license and motorcycle equipement. For safety what matters is the speed and the weight of the vehicle, the faster and heavier, the more dangerous.

I am also noting that unlike with SUV accidents, your friend put a lot less people in danger if not only himself.

chao-today at 5:12 AM

I'm sorry to hear about your friend, and hope they recover well.

Something I think a lot about when it comes to e-bikes, is the level of protective gear people feel they ought to wear on "a bike". Not all cyclists even wear helmets (obviously bad), but in addition to a helmet, on an e-bike you really ought to be wearing elbow and knee protection, purely because of the speed involved.

However, my sense is that people (a) don't think about that at all because they think of it as just like a bicycle, or (b) don't want travel with all of that extra gear. They want to treat an e-bike like a bicycle, when it is something much more.

I say all of this as a cyclist (non-e-bike) and rollerblader. On my bicycle I will just wear a helmet, but because of the particulars of rollerblading, I always wear elbow-pads and knee-pads. Differing circumstances require different adaptations.

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