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Friction drive e-bike conversions were popular years ago.
They generally:
* Wear tires surprisingly quickly
* Absolutely suck in any form of weather or terrain condition (dirt, rain, etc.)
* Have ~20% less efficiency than any other drive form.
But, they are easy, and they do work.
This bike booster will probably come in at less than half the cost but the Bimotal kit is another option that doesn't have the tire wear issue, offers better performance, and the form factor is much nicer.
About tire wear, I know a guy who did custom "Solex" type bike racing, with a small, friction drive petrol engine on the front wheel.
It was so bad that the rear wheel ended up getting bigger at the end of the race, as it picked up rubber deposited by the front wheel!
Keep it mind it was custom bikes though, the front tire just had to finish the race, they used a roller made of hard materials and knurled. I don't remember the reason, but it probably had to do with the fact their engines were quite a bit more powerful than traditional ones despite having the same displacement.
Also:
* you cannot install them on bikes with a rear rack. Here most city bikes have them.
Absolutely.
A Skarper system [0] that drives through an adapted brake rotor sounds [1] like it is the way to go if really want [2] a well thought close to non-permanent conversion solution.
[1] https://road.cc/ebiketips/review_v2/skarper-ebike-drive-syst... .
[2] Compared to other conversion options they are currently expensive https://road.cc/ebiketips/content/advice/buyers-guide/best-e...
And, don't forget: easy to steal off even a well-secured bicycle.
Yeah. I don’t see weather or theft addressed in this design.
I recall a wheel-mounted rotor system from a few years back that did address theft, tire-wear, and weather, but it suffered from far too little torque and very limited battery life.
Looks like you can't have a passenger anymore either. I like to have my kid on the backseat of my e-bike.
I'm not in the market for this, but I am in the market for making my cargo bike electric. Having to slow down at a traffic light and then start from zero absolutely sucks. It goes very slow, it is rough, and you won't have time. I'd use it just for that specific use-case.
Do they work with mountain bikes? As stupid as this sounds I like mountain biking but I don’t have stamina to climb up hills and then keep doing for a long time. I have an electric bike but designed for road
I really think ebikes, and things like this, would have a much better reputation if they really only supported up to maybe 10 km/h or 6 mph. This is a normalish running/jogging pace. Basically, they helped up hills and when tired but were not "motorcycles-lite". At least around us, in an area with lots of kids, people want to have them but there are so many injuries and problems that sentiment is generally very negative. And I think all you need to "make biking easy" is low speed assist. You don't need support up to 20 mph for that.
It seems to me this is a product for almost no one. Inefficient delivery of power, bulky, "smart" detection in stead of reliable operation and most importantly, the only target market I could imagine cannot use it. Not sure about other places and climates, but over here, most bicycles have fenders.
Bicycles without fenders are typically used for specific recreational activities and those sure as heck do not want this clumsy thing attached.. If they want any form of electrical assistance they would want it a lot more sleek and efficient.
Other than that, it reminds me of the Spartamet, a Dutch piece of tech from 1985 which added a small combustion engine to an otherwise regular city bike.
A smartphone app to change motor speed, really? Not even talking about your motor getting hacked (with the S in IOT standing for security and all), getting out a fragile device that captures all your attention while biking is really dangerous for you and the device.
So they say there's a button on the thing itself which is not so much more practical. If they insist on wireless controls, the cost of a waterproof battery-powered button to stick on the handlebars sounds worth it.
Clive Sinclair designed one of these in the 90s. It actually sold reasonably well, but was limited by the available battery technology of the period.
From the FAQ:
> ...rated IPX4 for water resistance ...suitable for use in light rain, but it should not be exposed to heavy rain or submerged in water.
A bike part you can't use in more than light rain seems like a pretty big drawback to me.
Ouch, love to see a great product like this. However, hate to see that bike theft wasn’t discussed at all.
“Easy installation” with two screws seems like a benefit to customers except when they come back to their parked bike only to find their expensive mod also had a hidden feature: “easy uninstallation”.
I remember these, from when I was young: https://www.youtube.com/watch?v=RNtHBEdZDYs
Funny little gadget but I feel like ASUS is about 5 years too late. With so many alternatives for the same money a friction drive just looks like a solution to problems that don't really exist anymore
I can see who might actually buy this: some guy with an old Specialized that he can't bear to throw away, but who doesn't want to show up at work all sweaty. Strap it on, ride in. Take it off, toss it in a backpack. There's something cool about that. But 3.7 kg in a backpack... yeah, no thanks. I'd probably just get a proper city e-bike instead of messing around with this contraption
ASUS manager: "now memory is scarce, does it even make sense to produce more motherboards"?
ASUS employee: "maybe not, but I hear that electric bikes are hot"
Funny, a modern version of WWII era technology
If I ever convert my bike to electric, I'll probably go with this https://www.swytchbike.com/
So, this won't work on any regular bike that has a fender, which is most 'regular' bikes people would use for city-driving/daily commutes. (At least in area's that get rain occasionally.
"The noise is higher than a conventional e-bike motor and is high-pitched, similar to an RC car, although quieter than some other conversion kits they had tested."
https://www.frandroid.com/marques/asus/3158393_meme-asus-se-...
Seems like a “ohh ebike is becoming big” management decision to somehow do a quick and dirty thinking it would be useful.
Unfortunately ASUS brand is not getting better with these actions.
It is decoupled from drivetrain. So, without torque sensor, how does it know when the rider wants to speed up vs. slow down?
I have to say, this looks really well designed and easy to use, I want one! But why Asus? I really want to know how they landed on this.
If some of you ever have the occasion to go to the Toyota commemorative Museum, in Nagoya (Aichi), you will find this:
https://www.tcmit.org/english/research/car/car01
This is the last century version of the item that Asus is presenting here... but with a Gasoline engine.
The Engine is fixed on its own wheel and attached on the side of the bicycle.
This was apparently was a thing. It was used to motorize Japan at its industrialization debut.
On century later, electrification is now a thing and the same device is back with a battery. The loop is done.
PS: I do recommend the museum for anybody interested in industries and industrial processes.
That might be the easiest ebike retrofit/conversion I've ever seen. I have concerns about the grip in wet conditions but this looks like a great way to get that ebike I've wanted and not put my perfectly good frame to waste.
It’s interesting in terms of the economics of development.
This product takes advantage of advancements in lithium-ion battery technology driven by phones and cars, benefiting from improvements in both performance and cost at scale without requiring extensive additional research. Looking forward to trying it.
Reminds me of https://en.wikipedia.org/wiki/V%C3%A9loSoleX:
*“VéloSoleX is a moped, or motorised bicycle, usually just referred to as 'Solex', […] originally created during World War II and mass-produced between 1946 and 1988, came in various iterations, while keeping the same concept of a motor with a roller resting on the front wheel of a bicycle”*
This powers the back wheel, though. I think that’s better for propulsion but it seems you’re giving up carrying stuff or a child on the back of the bicycle. Can’t even have a rack there with this contraption.
If I'm carrying around a giant battery I ought to be able to charge my devices from it, but it is silent on that front.
The design doesn't work if you have a mud guard or pannier rack. Also unclear how easily it is detached. Do I have to take it off everytime to prevent casual thievery? How do I take it off to charge inside? Does it have anti-theft bricking?
I'm struggling to understand who the target market is.
A couple other people here mentioned that theft is an issue. That's yet another reason why folding bikes seemed like the best use case for this. Not as good as a folding bike that's made for being an E bike, but if you've already got a good folding bike and a bit more zip on your commute is what you need, this seems like a interesting product.
As a cyclist, I thought this was a joke. Cycling is very efficient mode of transport, if anyone needs this kind of assistance (like those people on the stock photos), they are insanely out of shape.
I kind of like this. Not because it's necessarily the best way to electrify a bike, but because it's removable enough that your bike can still just be... a bike
Seems like an odd pivot, have Asus made any other (successful) non-computing products before?
All these sites have hype about AI features like AI Chat. however I use the chat, and it wastes about 3-10 seconds just to load, then I ask for the price, and it fails to understand even the page we were on (edit: "I don't understand what product you're referring to, please tell me the product"). Then I literally paste the page's product from the page into the chat, and it finally wastes my time more and sends a whole essay blob about why it can't tell me the price.
Is this what investors sell to the board about how they are using AI for greater efficiency? Just to waste consumers time even more?
Everyone is hating but this is a hack and you love to see it.
I remember those from 50 years ago. Back then it was a small petrol engine typically mounted on the front tyre. https://en.wikipedia.org/wiki/V%C3%A9loSoleX
It looks very stealable, which is amusing given "boost" is slang for "steal".
The friction-drive approach is interesting, especially at 3.7 kg. I’d be curious how the drive wheel affects tire wear and performance in wet conditions over time.
Reminds me of the best mechanic class in high school we were just five guys and the teacher let us rebuild two old velo solexes.
Their slogan should be “Reinventing the wheel” and then apply the device to all kinds of stuff
Been burned, can confirm every word
Excellent unless you have a mudflap in your back wheel in countries where it rains.
I just bought a Boost conversion kit from the UK and am excited to install it in a couple weeks. If anyone has installed this kit would appreciate a comment on the experience.
(I'm in the US and have been unimpressed with the kits available here. The Boost one looks compact and well designed).
Hah, my dad made something like this for me when I was a kid using a weed eater engine, with a makeshift lever as a clutch to engage/disengage it. This looks about as makeshift, I wouldn't trust it for serious use.
There used to be a few products like this in the early 2000s. Not a new idea at all.
Since no one can afford ram, they had to find other markets?