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Growing pain for e-bikes.

Old 03-15-24, 08:11 AM
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Take your pick - sailboats or gliders. For years, manufacturers have offered a small motor for their otherwise un-powered vehicles. As far as I know, everybody considers this an upgrade because it lets you do more.

E-bikes aren't like that at all. No parallel. E-bikers want a cargo ship or a speedboat disguised as a sailboat. They want a Cessna or a cargo plane disguised as a glider.
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Old 03-15-24, 09:59 AM
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Originally Posted by linberl
Our paths have a set width and you can't ride off the path easily. Even if you slow down, if some dog jets across in front of you, regardless of you having moved as far left as you can, or a kid runs in front of you or (as recently happened to me) some idiot standing off path steps right in front of you without looking, there isn't much you can do. My job as a cyclist is to obey the law. I am NOT responsible for making sure others pay attention. As a result I will not endanger myself further to avoid a collision with someone who is not behaving in a safe manner. I won't ride off the path, I will no longer lay down my. bike and risk injury, etc. I've had it with people who think cyclists have to watch out for them but they don't have to be at all aware of their surroundings or behavior. Last week some idiot was jogging in the oncoming lane to me in the correct lane while looking at his phone. I stopped and sat there and sure enough he ran right into my trike. Ripped his pant leg. He was very upset and I just kept repeating "try watching where you are going". I'm so over it.
I agree 100% although that's not my concern since there are plenty of bike paths with no congestion here. My problem is off road where idiots riding well past their skill level fly around blind corners with abandon. In all my years of riding I've been fortunate not to have a head on collision.
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Old 03-16-24, 03:34 AM
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Originally Posted by ScottCommutes
Take your pick - sailboats or gliders. For years, manufacturers have offered a small motor for their otherwise un-powered vehicles. As far as I know, everybody considers this an upgrade because it lets you do more.

E-bikes aren't like that at all. No parallel. E-bikers want a cargo ship or a speedboat disguised as a sailboat. They want a Cessna or a cargo plane disguised as a glider.
I would respectfully disagree with that.
I ebike and I sail, and I find a lot of similarities in the two activities.

Both are vehicles which are inherently far more efficient than the fully motorized alternatives. Because of the engineering necessity to conserve a more limited power source.

This efficiency gives pleasure. In both cases you are mostly just gliding along -- so much more pleasurable than using a fully motorized transport device.

Both are incredibly efficient. I get around 100km out of my ebike on less than 750 watt-hours of power -- that's orders of magnitude better than a motorbike, not to mention a car.

Both can be used with little or no motor power for hours on end in good conditions, just gliding along. Then the motor is always there when it's really needed.

I don't know what you're on about with the cargo stuff. My sailboat is 31 95/100 registered tonnes and can carry a bunch of people and stuff when needed. I've crossed oceans with it and lived autonomously with 5 on board for months. My e-bike is a cargo bike which can carry all kinds of stuff. This doesn't detract at all from the nature of it.

Last edited by Dockhead; 03-16-24 at 03:38 AM.
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Old 03-16-24, 03:43 AM
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Originally Posted by cat0020
I've seen it more & more, pedestrians not paying attention to where they are going, focused on their device while walking, not looking before crossing the street..
We all know that plenty of drivers do the same.
Main issue is ebikes make it easier for riders to ride at higher speeds, new or experienced riders alike,
until a rider is familiar with the performance of the ebike, able to respond to situations with minimal incidents,
there are going to be injuries & casualties.
Whether society prioritize legislation to limit PEVs on public roads/trails or educate the masses of importance of following the existing rules of the roads/trails; that's up to each of us to make priorities known to the legislators.
Yeah, this is right. If we want to keep the right to mix our traffic with pedestrians, we had better hope for better legislation.
In Europe, you can only use pedelecs with assist limited to 25km/h (about 15 mph) on bike paths and other places where there are pedestrians. E-bikes with throttles are forbidden, and "speed pedelecs" (assistance over 25km/h) must stay on the road with the cars, and in some countries require a license. This is very sensible. It is a great, great advantage for us not to have to ride with the cars. Successful mixing with pedestrian traffic requires speed limits. And probably training and education.
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Old 03-16-24, 03:50 AM
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Originally Posted by Trakhak
On the topic of ascending death rates among NYC riders:

It's likely that at least some riders don't fully understand how much of an effect the increases in weight, acceleration, and top speed of e-bikes can have on controlling the bikes. Add the density and unpredictability of New York City traffic, and the changing rates of accidents (and deaths) are unsurprising.
Riding a bike in car traffic is dangerous.

I'm not sure I agree that more speed makes it more dangerous -- I would think that the better you can match the speed of car traffic, the safer. Especially on hills I would think ebikes should be safer than pushbikes. But best of all is to get out of traffic and onto bike paths, and bike highways (like they have in Scandinavia). Bike lanes in roads help somewhat, but this is a half-measure. To be really useful they need to be physically separated from the road with car traffic. In Europe more and more they put the bike lanes on sidewalks rather than in roadways.
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Old 05-02-24, 06:20 AM
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There’s a new trend making electric bike batteries safer: Potting battery & controller.

https://electrek.co/2024/05/02/there...tteries-safer/

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Old 05-02-24, 02:11 PM
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Originally Posted by cat0020
There’s a new trend making electric bike batteries safer: Potting battery & controller.

https://electrek.co/2024/05/02/there...tteries-safer/
It doesn't seem like that would make the batteries safer; just more waterproof. Potting the cells in there would make it so that when the cells need to vent; they cannot and then it would be pressurized. Like the little Chinese firecrackers with just a tiny amount of gun powder, but wrapped up in paper super-tight to contain that energy, so that when they explode they explode with more force. One of the big safety features of lithium ion cells is that cell venting be tested and effective. Plug that up and it's bad news.

Controllers? Yes, it would make them more rugged and that potting compound would also dissipate heat. It also would make them not repairable, even by the manufacturer.

We'll see what happens!
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Old 05-03-24, 09:27 AM
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The theory is that by isolating the cells, thermal runaway is averted. As you say, we'll see. Luna has been doing that for about five years. I purchased one from their first batch and it's been perfect for my son's hardtail. They also used a very innovative way to mount the battery with strong magnets which also is perfect (even for off road).
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Old 05-03-24, 07:13 PM
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Originally Posted by tds101
The article said "New York City", not the suburbs or countryside. They weren't trying to avoid animals, and definitely didn't die "suddenly", unless getting hit by a vehicle accounted for "suddenly". Too bad the full article is hidden behind a paywall.
Here's a link to the same article, no paywall: https://www.nytimes.com/2024/03/05/n...smid=url-share
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Old 05-04-24, 05:01 AM
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Originally Posted by jeneralist
Here's a link to the same article, no paywall: https://www.nytimes.com/2024/03/05/n...smid=url-share
Thank you... I'd already disabled JavaScript on the page, so I'd read it already.
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Old 05-04-24, 07:06 AM
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I was skeptical about potting the cells, because of the vent issue, but I watched a Grin ebikes Video where the mad scientist in charge tried it, The cells still vented, and fhere was less fire. I'm convinced it works better than using air. He is a mad scientist, but pretty smart and making money too,

I believe that many of the batteries that catch on fire didn't even use air as a separator. They placed the cells next to each other, with only a thin layer pf PVC plastic as insulation. This was an accepted practice for stationary batteries but not so good for ebike packs. .
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Old 05-06-24, 08:17 AM
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Another article about battery potting:

New trend making electric bike batteries safer

https://electrek.co/2024/05/02/there...tteries-safer/
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Old 05-06-24, 11:00 AM
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I really like the adventure bike in that article even though it's $4K; fortunately my better half is friends with the owner's wife, so who knows?
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Old 05-13-24, 07:15 AM
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China’s sweeping new e-bike battery rules could have a major impact in US

https://electrek.co/2024/05/13/china...-impact-in-us/

Link in article states:

Currently, the number of electric bicycles in China has exceeded 350 million. In 2023, enterprises above designated size nationwide will produce a total of 42.28 million electric bicycles. Among the new electric bicycle models released by major domestic electric bicycle brands, more than 20% are equipped with lithium-ion batteries.
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Old 05-30-24, 06:40 AM
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New ebikes (from China) are going to be more expensive.. may impact some name brand models, too.

https://www.bicycleretailer.com/indu...expire-june-14

The grey area will be whether the tariff will be applied to bikes which are ORDERED prior to the 14 June deadline, or to eBikes arriving at US ports after the 14 June deadline. If it is the latter, then it is already pretty much in place due to shipping times from China.

The change in tariffs would mean a $2000 eBike will become a $2500 eBike.
Expect a cascade increase in eBike prices within the next two weeks.
For those sitting on the fence, try to find stock already shipped to the USA and close the deal quickly.

The Sun may be setting on getting inexpensive feature-rich eBikes produced in China.
This will be potentially affected by the Consumer Product Safety Commission (CPSC) which has defined as eBikes as "consumer products" as versus "transportation".
If the CPSC is able to keep this definition in place, then it may get some breathing room for those seeking to buy an eBike at a value price (but don't hold your breath on this).
The CPSC defined category is only supposed to apply to eBikes of 750 Watts or less.
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Old 06-21-24, 06:48 AM
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Footloose, for e-bikes? The US town that banned all electric bicycles

https://electrek.co/2024/06/21/footloose-for-e-bikes-the-us-town-that-banned-all-electric-bicycles/
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Old 06-21-24, 08:50 AM
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Thanks; draconian, but with 40 - 50 mph "bikes" readily available and individuals riding rampantly on sidewalks out here, who knows what's next.
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Old 06-21-24, 11:28 AM
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Originally Posted by 2old
Thanks; draconian, but with 40 - 50 mph "bikes" readily available and individuals riding rampantly on sidewalks out here, who knows what's next.
Yeah, at these speeds, they'll eventually need to be required to have a driver's license
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