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Show HN: Long Range E-Bike

jacquesmattheij.com

381–390 of 626 posts

Re: Show HN: Long Range E-Bike

#381

Earlier quoted context omitted.

Kind of strange that they build scopes with ground tied to mains earth, as it is the source of so many problems and hazards. Letting the entire thing float would be the proper solution.

That's because the metal case can go live if there is an internal short. That's what that protects against. But agreed, that really caught me out. I had a blind spot for days due to the afterimage.

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Re: Show HN: Long Range E-Bike

#383

Earlier quoted context omitted.

No e-biker should be on a sidewalk. There are informal norms. Cyclists who cycle on sidewalks should be relatively new and should make sure to behave explicitly with all of the rules of the road (ie. don't run a red from the sidewalk as a cyclist, very dangerous. if you must, dismount and walk across or wait for the pedestrian light). Cyclists on the street are generally more experienced and do not have to explicitly…

If you're piloting a vehicle on the road, you should follow all the rules of the road. This is the reason people hate cyclists.

Laws have social interpretation around them - there are plenty of road laws I see routinely broken for convenience by cars that are effectively unenforced.

"Idaho stops", ie. treating stop signs as yields is both enshrined in law in a few different areas and should be law in many others.

Idaho stops are perfectly acceptable in my view.

Re: Show HN: Long Range E-Bike

#384

Earlier quoted context omitted.

Seriously? 1. Motorbikes weigh at least 10 times as much as bicycles, and can't be picked up any moved around by the rider 2. Motorbikes are much wider than bicycles 3. Motorbikes can accelerate much faster than bicycles 4. Motorbikes emit noise and exhaust fumes 5. Motorbikes have a much larger turning radius than bicycles 6. Motorbikes are capable of keeping up with cars and therefore have no need to be on bike lan…

The starting point for this discussion was: "Who cares if it's pedal-assist or throttle so long as you aren't going markedly faster than normal people without any motor at all?" And my point is that there are a lot of devices out there that are legally an ebike, and therefore have access to bike infrastructure provided the observe a 20MPH speed limit, but that are in reality much heavier and less maneuverable than wh…

Then you also have:

- bakfietsen (cargo bikes)

- delivery bikes

- e-scooters (25 kph)

- e-scooters (45 kph)

- regular scooters

- mopeds

And all of those you can encounter on a bike path. I cycle daily with my kids on the way to school in traffic and I spent a lot of time over the years educating them to be safe. This is pretty hard work because kids really have the attention span of mosquitos and tend to be very easily distracted.

The scooters are the biggest danger, followed by cars, cars, cars and cars. E-bikes and other bike like devices have never over the course of many 1000's of rides to school and back been a problem. This is NL, so that may well be different where you live, here bikes are pretty well respected in traffic as long as you don't mix it up with the cars.

Re: Show HN: Long Range E-Bike

#385
post #38

Awesome project Jacques! I saw a comment of yours on an article a day or two ago and was hoping to see this pop up soon. I've found the most difficult thing about riding an e-bike is the other motorists have no idea how to react to you. You're not really a regular bicycle anymore due to your speed, but you're also not a motorcycle that deserves its own lane. I have at least one car turn in front of me almost every tr…

In the USA the situation is much more risky than here. I don't like riding in traffic mostly because drivers tend to have a short fuse for anything that isn't exactly at the limit, but on bike paths everything works just fine. The problem is that s-pedelecs are technically lumped in with the scooters, even though there is no throttle and there is absolutely no way you are going to sustain 40 Kph+ for anything but a v…

Very cool project. I'm currently evaluating whether I could commute 75km per day on a pedelec. In Switzerland there is a small bike manufacturer that makes long range pedelec : https://www.speedped.com/ (German only). It's very expensive though but the battery pack can be updated to something quite impressive.

Re: Show HN: Long Range E-Bike

#386

Earlier quoted context omitted.

This is a pedal assist e-bike. There are people that cheat and that install throttles so they can move without pedaling but that's a great way to get your vehicle confiscated. A typical ride has me providing 40 to 60% of the Joules and the remainder comes out of the battery. If there is a very heavy wind up (not rare here) that might drop to 30/70 and if I have a tailwind it is the reverse. The bike has a nice stats…

I object to the pejorative "cheat" as to suggest that non pedal assist is morally worse than pedalling. Edit to say nice job on the project, this is awesome. Here in Texas, I would love to see a lot of people using these in the bike lane.

Cheats as in 'breaking the law'.

Re: Show HN: Long Range E-Bike

#387

Earlier quoted context omitted.

That depends on what you mean by 'dial it up', do you mean a throttle? If so then that's illegal. If it is just a 25 kph bike then you can feather the pedals and it will go up to 15 or so and above that you'll have to work for it.

25 kph bike, has a setting for power that has 4 stages and an 5th stage called boost. Would go all the way to 25 with just feathering

Neat, I'll have to try that and see what happens, we have one ordinary e-bike here with a Bosch system as well.

Re: Show HN: Long Range E-Bike

#388

Earlier quoted context omitted.

If something has that average speed capability, why is not licensed, registered, insured and held accountable as any vehicle would be? My 50cc scooter appears to have comparable speeds (maybe 10kph higher), and I wear proper armour & helmet, took the classes passed the test, am registered, licenses & insured. That's my massive pet peeve & safety concern: I WANT to love e-Bikes, and all those sorts of things; and like…

I drive, walk, and bike often in San Francisco. I rode a 650cc motorcycle for 10 years when I was in my 20s. In the Panhandle, for example, there is a mixed use bike / walking path. It is very dangerous for the walkers even with normal bikes, as the bikes are whizzing by the walkers at 20mph. However one day I was walking, and a HUGE mutant E-bike with massive fat tires & very heavy frame, flew by me at what seemed l…

a single curving central lane is one solution.

i also like the dutch solution, in which entrances into these slow zones are generally with a raised crosswalk that acts as a speed bump.

Re: Show HN: Long Range E-Bike

#389

We really need a terminology to differentiate better between pedal-assist only e-bikes ("pedelec") and electric motorbikes. A "bicycle" that can accelerate without the need to pedal at all is an electric motorcycle, no matter if you put pedal on it or not. I see the two as totally different things: I've tried pedal-assist e-bike and they're great. But... Although I have nothing against motorbikes I'm not cool at all…

I don't think there is a meaningful clear demarcation between pedal-assist and electric motorbike. The throttle control just looks different.

On good e-bikes I've ridden, the pedaling is basically limited to telling the motor to go, no meaningful force involved. Sure, you can put "controls motor with button" and "controls motor with pedal" into different legal categories, but I doubt there is much of a benefit in doing so.

Re: Show HN: Long Range E-Bike

#390

Earlier quoted context omitted.

You realize it is not hard for a cyclist to hit 25-30mph without motor assist, right?

At one time I was a Cat 1 (last stop before pro) bicycle racer. Races would typically spend hours at 25mph, so I have a pretty good idea of how hard it is. 30mph on flat ground, unassisted, for any non-trivial length of time? Yeah, damned hard even if you're in shape (and impossible if you're not). 25mph by yourself? It might be "not hard...to hit" 25mph, but to sustain that speed is going to be nearly impossible for…

Exactly. The kind of stuff thrown around in this thread borders on the unbelievable or we have a couple of pro riders here that I wasn't previously aware of. I think I know a couple of really strong cyclists (notably, my brother but also others) and in spite of my injury I'm no slouch and am rarely overtaken on a regular racer but if I'm to believe this thread then I really should be checking my bike if something is dragging or not ;)
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