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The Electric Motorcycle Thread

I don't think you can extract single cells from big packs like on Zero, Livewire, and Energica. A lot of them are potted or some equivalent to satisfy road going safety requirements.

Honestly, (big 200+ volt) battery packs aren't as disposable as the first generation Leaf made everyone think they are. Anything built in the last 5 years (Car or Bike) with a bad cell will be known in the first few months of ownership. The common theme is for manufacturers to have the actual capacity of the pack and the "available capacity" be two different numbers to prolong the pack life. So cells rarely just go bad.

The idea that you'll need to replace your battery every 5-10 years is out of date info and an anti-EV talking point.

At my last service, a few weeks ago, they pulled the data logs. My bike has charged and discharged 87,000 amp hours over the last two years. When my bike is 100% charged it still has more than 19KWH (no loss in capacity) and the delta between high and low cell voltages is 13 millivolts. If those numbers mean nothing to you, just know that it demonstrates I have a very healthy pack.

That said, all the things that are EV Moto specific (firmware, BMS, etc) are proprietary. If those brick, you're SOL without dealer software support. Zero has a pretty good resource in that they have been around the longest so replacement parts are available in the used market if you cant stomach a manufacturer price. (although you may have to buy a whole bike for a song and then part it yourself) There is also the Unofficial Zero Manual and a community of tinkerers and hackers you can tap into. In the case of Energica, those of us in the bay area have the benefit of proximity to the service center in South SF. the employees there are still employed and have vowed to become Shogun Traveling Mercenary Hired Gun technicians if the company folds as they have exclusive and valuable knowledge and software.

If you want something with more off-the-shelf, plug-and-play components stick with large volume, lower cost, not-street-legal, Asian imports. Surron, Admit Jet, Talaria, and all the clones there of.
 
You can supposedly rebuild an Alta Redshift battery pack. I know a former Alta engineer that can rebuild them. They use 18650 cells. Panasonic cells in the A Packs and Sony cells in the R pack. So far my Redshift SM's battery seems to be in good health even after racing it more than a dozen times.

I had a Victory Empulse TT and it got a battery fault. Luckily the battery was still under warranty. So instead of trying to fix it myself I tried to have a Polaris dealer fix it and they just wound up buying the bike back from me because they couldn't fix it. I was able to pull some battery logs off of the bike and it seems some water got in the pack. There is a humidity sensor in the pack and it would say the cells are wet and the bike wouldn't run. it could be there was no water in the pack and the sensor went bad. I might have been able to fix it but I went the buy back route.

If you take good care of the battery pack it should last a long time. Like Motoproponent mentioned if something doesn't happen to the battery in it's early years it'll be reliable. The worse thing you can do is let the pack sit around for a long period of time and self discharge. If the cells discharge too low the BMS will shut the battery down and it could damage the cells. If you aren't riding it keep it at about 50% charge. Every once in a while charge the battery to full and let it sit like that for a day or two so the cells can balance.
 
Thanks guys for taking the time to answer. That was super valuable insight and you both answered something that's been on the back of my mind for awhile. Cheers.
 
Big shutdown from Scottsdale, last nite's news.
The city has banned E-bikes/scooters from use by riders under 16 years old.
Starting end of month, July.

I foresee civil reaction, roving bands of kids & their version of Critical Mass, , ,
 
That's lame.

Here in Truckee probably 20-30% of the middle school kids e-bike themselves to school when the snow isn't here.
 
I feel they need to have some kind of license to ride these. Some people riding scooter and ebikes have no commonsense operating them. You'll see these ultra fast stand up scooter blasting down the road going faster than the cars with no gear on at all. They just do whatever they want.

It's kinda like how some states require you to take an ATV safety course.
 
Oh yeah I've heard of it. Looks promising they're comparing it to the Varg supposedly.
 
Ebikes are motorcycles, albiet not scary ones, unless ATTGAT is seen as silly. Peeps are silly.

This is scary

This is a useful bit
In Class 1, the bike’s motor assists the rider up to a speed of 20 m.p.h., but only when a rider is pedaling. Class 2 has the same top speed but also has a hand-operated throttle, similar to a motorcycle’s, that can be used in lieu of pedaling. Class 3 is like Class 1, but its maximum assisted speed is 28 m.p.h. (The federal limit of 20 m.p.h. applies to the speed generated solely by a motor; speeds can exceed that in combination with human pedaling.) As a rule, Class 1 bikes are permitted wherever a conventional bicycle can go (including bike lanes and trails), while Classes 2 and 3 are restricted to streets and roads (in theory if not in practice).
 
Scary?? Or realistic?

Good article.
 
Sorry, this has nothing to do with e-bikes.

When the bike toppled over, “our immediate reaction was that we all started laughing — we just thought it was so funny,” she says. “Like, Ha ha, they’re so stupid, they can’t even ride bikes.”

This sounds like it could have happened on any bike. No mention of going to fast, or doing anything. Just "toppled over".

Well, we all know quite well that the primary purpose of the helmet is to protect against that 6 foot drop to the pavement. A motorcycle helmet is better designed to cope with the tumbling and abrasion of a higher speed get off vs a bicycle helmet. But job #1 is that 6 foot drop.

Kids, wear your helmets.
 
Well, we all know quite well that the primary purpose of the helmet is to protect against that 6 foot drop to the pavement. A motorcycle helmet is better designed to cope with the tumbling and abrasion of a higher speed get off vs a bicycle helmet. But job #1 is that 6 foot drop.

Kids, wear your helmets.

I think we know that, but I definitely think that most people assume the helmet is for when "real" accidents happen, and not the simple tip overs.

I do agree that the driving narrative story is surprisingly weak compared to the spectrum of hooliganism that does happen in the name of e-bikes.

That said, the most shocking part of that article is learning CA doesn't have a universal helmet law for cyclists.
 
Sorry, this has nothing to do with e-bikes.



This sounds like it could have happened on any bike. No mention of going to fast, or doing anything. Just "toppled over".

Well, we all know quite well that the primary purpose of the helmet is to protect against that 6 foot drop to the pavement. A motorcycle helmet is better designed to cope with the tumbling and abrasion of a higher speed get off vs a bicycle helmet. But job #1 is that 6 foot drop.

Kids, wear your helmets.
true. It is all about training. Mostly train parents to advise their children to be smart.
 
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