this post was submitted on 29 Aug 2023
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I don't believe that. That's 50kph!! Your average cyclist will be pedaling 12 to 15 mph (20 to 25 kph) and at that point you'll be sweating, it's not "leisure" speed. That would be up to 9mph/15kph.
You are not reaching 30mph unless you are fully sprinting on a descent with a gravel bike (maybe a mountain bike if it's a long, long, stretch) or have a road bicycle on a flat/slight slope and you are full sending it (even on a flat road I'm assuming, I've never ridden one). Not to mention these people will be using protective gear.
I have a gravel bicycle and on a flat road I can get up to 23mph (37 kph) with me going full beans (occasionally fighting the wind). For reference, I've only reached 30mph a couple times in 1,100km and it's been only on a 3km long downward stretch of road. Also because there's no point to waste that energy when you are transversing double digits distances, and it gets really scary to be at those speeds anyways.
You certainly cannot get those speeds on a city bike or mountain bike on flat asphalt since they are not as aerodynamic, and often more heavier.
I do agree with most of your post, and the whole your average cyclist doing "30 mph without much trouble" is ridiculous. I do think you are underestimating how fast road bikes can be though.
So, on a road bike, it is pretty easy on the flat to keep 20mph/32kmh. 30mph/48kmh is definitely an effort and not one that is sustainable for most people. To give you an idea, I did a charity bike ride in June which was just shy of 100 miles, it was 158.3km with 1667m of climbing as well, so not completely flat. I averaged 31.2kmh. I am in no way fast, I am alright on the flat but gravity is a cruel mistress on an uphill.
Downhill is a different thing as well, I have hit speeds of around 62mph/100kmh, and a hill near me will almost always spit me out doing 55mph/89kmh with 0 effort(roll down the hill and sit on the drops), and that is on both my road and gravel bikes. But that is probably steeper than you are thinking. However, there is also a pretty steady -1% average "downhill", it is a false flat, but it is really easy to cruise along at 25mph/40kph+.
The key difference is you're an experienced cyclist. You're capable of recognising that it's safe to go 60mph down that particular hill and if it wasn't you'd be on the brakes. Also you probably know how hard you can pull that front brake lever without going over the handle bars.
Inexperienced cyclists and high speeds are a really bad combination.
Most parents wouldn't let their teenager ride YZF-R1, and they shouldn't be letting them ride a high powered eBike either.
I think my biggest issue with this thread is the bikes they are referring too are actually Electric Motorbikes(and should be treated like any other motorbike), not an "ebike" in the typical sense of Pedal Assist Bicycle.