4 ms·

Any half-fit cyclist can do way more than 25kmh sustained on flats. From 30 up it becomes way harder. I'd put it at least at 30.

gambiting 4y ago
>>Any half-fit cyclist So like, almost no one who cycles/commutes from time to time then? Don't get me wrong, 25km/h isn't particularily fast, but I'd struggle going at that speed for more than few minutes, and my wife definitely wouldn't keep up. I used to cycle loads when I was younger, on a proper road bike that kind of speed is nothing. But on a hardtail or a city bike? It's actually quite hard! We own an e-bike and I think the 25km/h assist limit is spot on.
- dzhiurgis 4y ago
  Good for you if you only intend to use bike paths. If you want to get on roads you need to sustain 50-60km/h, peak 70 in most cities. I'd much rather do that on a proper ebike and not on a escooter. I've got drivers licence already, bureaucracy shouldn't be in the way of registering ebikes as appropriate.
  - gambiting 4y ago
    >> If you want to get on roads you need to sustain 50-60km/h I'm sorry, but that's just not true - again, I used to cycle absolute loads(several thousand km a year) and "sustaining"(doing it for a long period of time without getting absolutely destroyed) 50km/h is extremely hard, you need to be a pretty good cyclist and on a good road bike. And no, you don't need to be keeping up with traffic, in cities or otherwise. Don't see why you think you should.
    - dzhiurgis 4y ago
      Context is ebike, not by foot. I had bike that could do 50km/h and it was just a bit too slow. You wanna be comfortable overtaking cars, not just be squished in-between.
      - Schroedingersat 4y ago
        That's an electric motorbike. Get it registered and with road rated hydraulic disc brakes, wheels, and suspension and wear road rated safety gear. It doesn't belong on separated bikeways with children and mixed use paths with babies and dogs. An ebike is for the same roles as a human powered bikes, and no human can consistently move at speeds that are comfortable for overtaking cars on the flat or uphill. Escooters, if anything, should be even slower as their geometry makes emergency braking impossible, but a 25km/h, 250W limit for everything is an acceptable compromise to reduce regulatory burden. If you want a stand up scooter that produces kilowatts and does 90, then it's also an electric motorbike (or motor scooter/moped where that's a category) and should be held to the same safety standards.
        dzhiurgis 4y ago
        I think you missed my og post. These bikes are capable doing such speeds, but no one sells them because regulation
- LargoLasskhyfv 4y ago
  I do effortless(=no transpiration) 30 to 35km/m on flat grounds with no headwind sustained. Where 'sustained' means something like 10 to 15 minutes max, since after that I either arrived at my location, or on longer tours I have to slow down many times for other traffic, pedestrians, traffic lights, etc. On a three speed 28" from ca. 1985 btw., weighing 12kg with side dynamo, lights, mudguards, rack, and a wirebasket fixed with a bunch of cable ties on top of that(for my back pack).
stkdump 4y ago
For any half fit cyclist, the 25kmh ebike limit is the minimum speed. That is the speed you go uphill. Downhill and flats, you can go a lot faster, because you didn't spend your energy accelerating to 25.
- pmontra 4y ago
  But then you're on your own with a bike that weights at least 10 kg more than it should. I was in a group of friends. One of us had an ebike. He was good on our way to the hills and of course uphill. We had to stop and wait him a lot of times on the way back, because we were doing at least 30 and he was struggling to keep the pace without the help from the engine. I suggest not to mix bikes and ebikes unless you are out for a slow Sunday afternoon trip.
  - stkdump 4y ago
    In a large enough group the body weight differences easily outweigh (heh) the bike weight differences. And of course the fitness differences are a whole other story.
Schroedingersat 4y ago
I'd also be pro 32, but 25 is fine. I tend to do 25-28 on my electric (weird geometry so it's unstable at higher speeds without a load) and 15-35 on my acoustic. Sustaining over 30 is actually a fair bit of work on an upright though. The vast majority of people do under 25 on flats or uphills most of the time.
JCharante 4y ago
and I trust a half fit cyclist more. If you can pedal 40km/h on the flats, then you know enough bike handling to do it compared to giving any random person who can normally only do 20km/h the power to go 40km/h.

gambiting 4y ago

>>Any half-fit cyclist So like, almost no one who cycles/commutes from time to time then? Don't get me wrong, 25km/h isn't particularily fast, but I'd struggle going at that speed for more than few minutes, and my wife definitely wouldn't keep up. I used to cycle loads when I was younger, on a proper road bike that kind of speed is nothing. But on a hardtail or a city bike? It's actually quite hard! We own an e-bike and I think the 25km/h assist limit is spot on.

dzhiurgis 4y ago
Good for you if you only intend to use bike paths. If you want to get on roads you need to sustain 50-60km/h, peak 70 in most cities. I'd much rather do that on a proper ebike and not on a escooter. I've got drivers licence already, bureaucracy shouldn't be in the way of registering ebikes as appropriate.
- gambiting 4y ago
  >> If you want to get on roads you need to sustain 50-60km/h I'm sorry, but that's just not true - again, I used to cycle absolute loads(several thousand km a year) and "sustaining"(doing it for a long period of time without getting absolutely destroyed) 50km/h is extremely hard, you need to be a pretty good cyclist and on a good road bike. And no, you don't need to be keeping up with traffic, in cities or otherwise. Don't see why you think you should.
  - dzhiurgis 4y ago
    Context is ebike, not by foot. I had bike that could do 50km/h and it was just a bit too slow. You wanna be comfortable overtaking cars, not just be squished in-between.
    - Schroedingersat 4y ago
      That's an electric motorbike. Get it registered and with road rated hydraulic disc brakes, wheels, and suspension and wear road rated safety gear. It doesn't belong on separated bikeways with children and mixed use paths with babies and dogs. An ebike is for the same roles as a human powered bikes, and no human can consistently move at speeds that are comfortable for overtaking cars on the flat or uphill. Escooters, if anything, should be even slower as their geometry makes emergency braking impossible, but a 25km/h, 250W limit for everything is an acceptable compromise to reduce regulatory burden. If you want a stand up scooter that produces kilowatts and does 90, then it's also an electric motorbike (or motor scooter/moped where that's a category) and should be held to the same safety standards.
      - dzhiurgis 4y ago
        I think you missed my og post. These bikes are capable doing such speeds, but no one sells them because regulation
LargoLasskhyfv 4y ago
I do effortless(=no transpiration) 30 to 35km/m on flat grounds with no headwind sustained. Where 'sustained' means something like 10 to 15 minutes max, since after that I either arrived at my location, or on longer tours I have to slow down many times for other traffic, pedestrians, traffic lights, etc. On a three speed 28" from ca. 1985 btw., weighing 12kg with side dynamo, lights, mudguards, rack, and a wirebasket fixed with a bunch of cable ties on top of that(for my back pack).

stkdump 4y ago

For any half fit cyclist, the 25kmh ebike limit is the minimum speed. That is the speed you go uphill. Downhill and flats, you can go a lot faster, because you didn't spend your energy accelerating to 25.

pmontra 4y ago
But then you're on your own with a bike that weights at least 10 kg more than it should. I was in a group of friends. One of us had an ebike. He was good on our way to the hills and of course uphill. We had to stop and wait him a lot of times on the way back, because we were doing at least 30 and he was struggling to keep the pace without the help from the engine. I suggest not to mix bikes and ebikes unless you are out for a slow Sunday afternoon trip.
- stkdump 4y ago
  In a large enough group the body weight differences easily outweigh (heh) the bike weight differences. And of course the fitness differences are a whole other story.

Schroedingersat 4y ago

I'd also be pro 32, but 25 is fine. I tend to do 25-28 on my electric (weird geometry so it's unstable at higher speeds without a load) and 15-35 on my acoustic. Sustaining over 30 is actually a fair bit of work on an upright though. The vast majority of people do under 25 on flats or uphills most of the time.

JCharante 4y ago

and I trust a half fit cyclist more. If you can pedal 40km/h on the flats, then you know enough bike handling to do it compared to giving any random person who can normally only do 20km/h the power to go 40km/h.