[HN Gopher] DJI Announces an Electric Mountain Bike Drive System
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DJI Announces an Electric Mountain Bike Drive System
Author : Logans_Run
Score : 20 points
Date : 2024-07-05 20:28 UTC (2 hours ago)
(HTM) web link (www.dji.com)
(TXT) w3m dump (www.dji.com)
| sandworm101 wrote:
| 20kg? 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.
| demondemidi wrote:
| 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.
| slau wrote:
| Agreed. For most people it would be more reasonable to lose
| the three-four kg in body fat and keep the aluminium frame
| rather than upgrading to carbon fibre.
| plorkyeran wrote:
| Unless you have found a way to spend a few thousand dollars
| to make 3-4 kg of body fat magically disappear with no
| complications or effort, losing weight and spending more on
| a bike are not things you're choosing between.
| unsigner wrote:
| semaglutide comes pretty close to "a few thousand dollars
| to make 3-4 kg of body fat magically disappear with no
| complications or effort"
| stavros wrote:
| Isn't this about e-bikes? Do people generally train on
| e-bikes? It feels that these two would be distinct sets.
| sandworm101 wrote:
| At least in the pacific northwest, mounting biking isn't just
| about riding the bike any more than owning a motorcycle is
| just about riding a motorcycle. It's a culture or talking
| about and bragging about bike tech. Weight is bragging rights
| for mountain bikes as "aero" is for road bikes. Lots of
| people will pay to have the better toy. The running joke is
| that many bikes are worth more than the cars that bring them
| to the trailheads.
| plorkyeran wrote:
| 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".
| bluescrn wrote:
| I don't think competitive e-biking is a thing. And if you're
| commuting or riding recreationally, you probably don't care
| much about weight.
|
| And this looks like a competitor for the Bosch systems that
| power many e-bikes, needing a similar frame design - and not a
| kit to install on non-electric bikes.
| Zigurd wrote:
| 20kg is fairly light for an e-mtb. I'd bet typical use is to
| climb the uphill paths on an mtb trail system, even though the
| bike they mention isn't a dedicated DH bike.
| Temporary_31337 wrote:
| It's hardly state of the art at this point. There's lighter and
| more efficient drivetrains from Shimano bosch and many others.
| reustle wrote:
| Get into as many markets as possible so it becomes harder for
| the US to ban you outright.
| sottol wrote:
| I don't know that I see anything revolutionary? The peak power
| seems maybe higher than Bosch CX at 850W vs 600 but continuous
| power is similar 250W. 800Wh max battery pack size is also not
| entirely out of the ordinary. The packaging seems nice, the
| battery seems quite slim and integrate well into ordinary-looking
| downtube on the Amflow bike - but don't see much otherwise.
| Weight seems on the high side.
| tgsovlerkhgsel wrote:
| More than 250W continuous is pointless in many countries
| because that's the limit for the most common e-bike class (i.e.
| even if the system can do more, you'd want to de-rate it to
| 250W).
|
| Bosch makes excellent motors, but they're ripping people off on
| accessories (a dumb charger costs 89 EUR in the "compact"
| variant that can do 2A or around 80W and weighs 600g, needing
| over 10 hours to charge a large battery), and enabling this
| with aggressive DRM (which also means updates can only be done
| by a repair shop). They're also trying to make your bike a
| subscription, of course.
|
| So even if all DJI does is become competitive, that's already a
| win. Bonus points if they actually let you tune (some) motor
| parameters yourself. The hard part seems to be reliability (a
| bike that gets mud, water and washing together with constant
| vibration is a pretty harsh environment) and many Chinese motor
| brands have a less than stellar reputation there, and because
| this is not something easily testable, building a reputation
| (and gathering the experience needed to actually build good
| products) takes time.
| rdl wrote:
| I assume price would be the major factor. Also, as someone
| who knows nothing about e-bikes, but who knows "DJI makes
| good cheap drones and gimbals", they'd be pretty high on my
| list of "probably makes an ok product" without searching.
| nathancahill wrote:
| The product page has a lot more info and photos:
| https://www.dji.com/global/avinox
|
| The screen/computer part seems to be significantly nicer than
| competition.
| metadat wrote:
| _> 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 (absolutely bonkers) 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 compete with something nice from 5 years ago?
| bagels wrote:
| 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.
| _zoltan_ wrote:
| I can't imagine a 3kW bicycle to be legal anywhere. here in
| Europe you'd need an A1 license for it.
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