> The integrated DJI Avinox electric power assist system leverages DJI's cutting-edge technologies in both software and hardware design, offering 850 W of peak power (250 W nominal power) in an ultra-light body of 19.2kg This is most unimpressive. I have an 2019 3000w LunaCycle e-mountain bike (based on the Giant Anthem) with similar drive system weight specs, which includes the ginormous 40ah battery. Why can't DJI…
Is that a legal bike in your jurisdiction? In California you're riding an unregistered moped, illegally, most likely. I suspect DJI is aiming for legal bikes that established bicycle manufacturers can sell.
DJI announces an electric mountain bike drive system
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Re: DJI announces an electric mountain bike drive system
#22> The integrated DJI Avinox electric power assist system leverages DJI's cutting-edge technologies in both software and hardware design, offering 850 W of peak power (250 W nominal power) in an ultra-light body of 19.2kg This is most unimpressive. I have an 2019 3000w LunaCycle e-mountain bike (based on the Giant Anthem) with similar drive system weight specs, which includes the ginormous 40ah battery. Why can't DJI…
Is that a legal bike in your jurisdiction? In California you're riding an unregistered moped, illegally, most likely. I suspect DJI is aiming for legal bikes that established bicycle manufacturers can sell.
Re: DJI announces an electric mountain bike drive system
#23seems like more and more players popping up.
Re: DJI announces an electric mountain bike drive system
#24Earlier quoted context omitted.
Is that a legal bike in your jurisdiction? In California you're riding an unregistered moped, illegally, most likely. I suspect DJI is aiming for legal bikes that established bicycle manufacturers can sell.
The point is, if DJI's system is lower power, shouldn't it be significantly lighter?
Re: DJI announces an electric mountain bike drive system
#25Earlier quoted context omitted.
Is that a legal bike in your jurisdiction? In California you're riding an unregistered moped, illegally, most likely. I suspect DJI is aiming for legal bikes that established bicycle manufacturers can sell.
I can't imagine a 3kW bicycle to be legal anywhere. here in Europe you'd need an A1 license for it.
Fun trail bike though (helpful on the uphills, for someone who doesn't typically enjoy that part).
Re: DJI announces an electric mountain bike drive system
#2620kg? Actual trail riders spend hundreds to thousands shaving grams off their bikes. I think this is just another attempt to break e-bikes away from being a distinct product, to keep the "e" an optional upgrade to whatever bike the customer already owns.
Approximately no one is paying thousands of dollars to shave grams off an eMTB. There is a small but visible group of people doing that for road bikes and a much smaller group of people doing that for non-electric mountain bikes. There's probably some weirdo out there doing it for an electric mountain bike but they're probably more of a "decorative expensive bike purchaser" than an "actual trail rider".
Re: DJI announces an electric mountain bike drive system
#2720kg? Actual trail riders spend hundreds to thousands shaving grams off their bikes. I think this is just another attempt to break e-bikes away from being a distinct product, to keep the "e" an optional upgrade to whatever bike the customer already owns.
Actual trail riders mostly do not do this. Source: worked at a bike store. People with a lot of money that treat their bike as something to optimize and not something to ride do this. I'm not saying its wrong, its just another way of being a bike enthusiast, but this type rarely overlaps with serious riders. Training improves performance, not $3000 wheels that shave off 50 grams.
Re: DJI announces an electric mountain bike drive system
#28> The integrated DJI Avinox electric power assist system leverages DJI's cutting-edge technologies in both software and hardware design, offering 850 W of peak power (250 W nominal power) in an ultra-light body of 19.2kg This is most unimpressive. I have an 2019 3000w LunaCycle e-mountain bike (based on the Giant Anthem) with similar drive system weight specs, which includes the ginormous 40ah battery. Why can't DJI…
Many high power ebike enthusiasts (for example “High Voltage DIY Electric Bikes” channel on YouTube) argue that these low legal power limits actually make e-bikes less safe, as you need a good 2-3kw to actually ride with the flow of traffic. At US or worse UK power limits, you don’t get enough of a boost for that and you’re more likely to get hit from behind.
In my case 1500 watts feels like a good low range of what I would want. Luckily for work I’ve been developing my own open source brushless motor controller for a few years now, and we’re finally maturing past the self-immolation phase of motor controller design. I’m going to try to outfit my bike with it eventually. Later on I would like to make a 72 volt version (84v peak, so 100 volt parts).
https://youtube.com/@highvoltagekits
https://github.com/Twisted-Fields/rp2040-motor-controller/tr...
https://github.com/Twisted-Fields/rp2040-motor-controller/tr...
Re: DJI announces an electric mountain bike drive system
#29Earlier quoted context omitted.
I can't imagine a 3kW bicycle to be legal anywhere. here in Europe you'd need an A1 license for it.
Fwiw you wouldn't ride around town at 3kw, that would be ridiculous and dangerous. The default power level is "1" (out of 5) which assists with around 180-250w. Fun trail bike though (helpful on the uphills, for someone who doesn't typically enjoy that part).
Re: DJI announces an electric mountain bike drive system
#30There is of course a bunch of poo-pooing in an HN thread.
The problem with the e-bike sector is a misalignment:
what people say they want: a cargo bike, a fixie, a mountain bike, a folding bike, a... etc.
what people actually want: a moped that is emotionally and aesthetically a bicycle
The audience for a moped that is emotionally and aesthetically a bicycle is like 1,000,000x larger than the audience of a mountain bike; and the number of miles ridden per "moped that is emotionally a bicycle" will be like 10-100x greater than a mountain bike.Nobody cares about mountain bikes, or grams saved, or whatever. That's like, some hobby. We might as well be comparing fine German violins. I know this is what is advertised, but who knows what they are thinking when they depict so and so bicycle in their press release.
I'm excited about this bike because it is basically a Stromer ST2: a semi truck of a bike that can sort of do everything. It's a moped with the emotional energy of a bicycle.
What is the ideal e-bike? It is basically a step through Pinion MGU, which Kettler makes. Unless there is more competition, such as with bespoke drive trains, that incredible bike will continue to cost $9,000.
There is a lot of confusion in the sector. VanMoof continues to experience significant financial difficulties, but in all other senses they are a colossal success: they were the first to deliver a moped that emotionally and aesthetically feels like a bike, and a ton of people bought it, and then those people put 10x-100x more miles on those bikes than any owner of any Sturmey Archer bicycle ever has, and VanMoof doesn't bite the bullet and recall for recurring issues like breaking boost buttons, and they run out of money ad-hoc fixing issues over and over again. Stromer also uses proprietary parts and they are reliable, it isn't so black and white. People here are talking about Bosch. Bosch motors break. People are abandoning them. They were put into bikes that were more and more frequently replacing cars, which meant people ride them 10x more than a mountain bike or whatever artisanal or hobby use they would otherwise put on their bikes, and suddenly, the things are breaking all the time.
Every time someone sells something that actually meets the real need for a moped that is emotionally and aesthetically a bicycle, they either price it too high to reach a large enough audience used to prices 1/10th as high on Amazon for the same keywords, or they price it too low for the huge increase in failure due to the huge increase in miles. DJI gives me some confidence they will not misplay this.