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Posted by wiradikusuma 4 days ago

Asus Bike Booster(www.asus.com)
367 points | 233 comments
bri3d 7 hours ago|
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.

molsongolden 5 hours ago||
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.

https://bimotal.com/products/elevate

fwipsy 4 hours ago|||
Wow, $2k? You could get a decent ebike for that money. And the installation doesn't look any easier than a hub motor... Only seems worth it if you already have an extremely nice bike. I think of friction drives as being aimed at budget-conscious commuters, not serious mountain bikers.
veunes 47 minutes ago|||
$2k makes sense only if the bike underneath it is valuable enough that you specifically want to keep riding that bike
selfhoster1312 2 hours ago||||
I was shocked by the price, too. I mean a motor and a battery can't be so expensive, especially such a "small" battery (300Wh).

That being said, having driven electric bikes for a while, here in France they're ridiculously limited in speed and power. 25km/h limit on flat land usually makes sense (except on long straight lines), but when you get climbing even slightly you get down to ~10km/h and have to provide more effort. I guess that's where the 750/1250W 70Nm unrestrained motor comes in handy, and if you live in a place with lots of small hills the choice is either that kind of motor or a car, not the 1000€-total Decathlon/Carrefour electric bike.

bendews 31 minutes ago|||
I have a heap of ebikes, all 250w and 25km/h limited. A Bosch performance line motor on a MTB going up a steep hill is effortless compared to a budget shimano motor where it can barely make it up no matter how much effort you put in to pedalling. Torque makes a big difference.
bramblerose 1 hour ago|||
In my experience the issue is one of torque, not of power. Most cheaper electric bicycles (including most Decathlon models) have a hub-mounted motor which cannot deliver power effectively at low speeds -> it stops assisting when you most need it. For hilly terrain you need a motor that's mounted on the crankshaft so that it can take advantage of the gears.

To compare: a tour de france runner outputs 400-500W on mountain climbs while keeping up to 20-25km/h. So a 500W motor (plus 100W power output from yourself) should be enough for smaller climbs!

DonHopkins 1 hour ago||
My Koga has an Enviolo stepless bicycle automatic transmission, which frees me from thinking about shifting, so I can pay more attention to riding safely and effortlessly.

https://news.ycombinator.com/item?id=48761621

DonHopkins 44 days ago | root | parent | prev | next [–]

Enviolo stepless bicycle automatic transmission (never manually shift again, accelerate while continuously shifting under load), with a carbon fiber belt drive (maintainance free, silent, never get grease on your pants or hands again), and Bosch Performance Line mid-motor (strong zippy performance from the geniuses who paid a €90 million fine for Dieselgate), plus GPS tracker with "recovery service" (required for insurance).

https://enviolo.com/

https://www.youtube.com/watch?v=TQrgKBQrkag

https://www.youtube.com/watch?v=6xY2S-9gjHI

https://www.koga.com/en/enviolo-gear-hub

https://www.koga.com/en/bikes/e-bikes/evia-pro-automatic?fra...

It's a dream bike, optimized for comfort and city riding, but Koga is not available in the US, though.

Here's an American bike that has similar features (not as nice as the high-end Koga Evia Pro Automatic though), the Harley Davidson Rush/CTY (step through model is easiest to mount/unmount/ride):

https://www.youtube.com/watch?v=4SjN8RN9g7Y

https://www.youtube.com/watch?v=KoX9S5UhETE

https://serial1.nl/

The Enviolo Automatic also come in a heavy duty version paired with high performance motors for bakfiets (cargo bikes), for 3-4 children, big dogs, and groceries:

https://batavus.com/en-nl/products/fier-3-bbfn3

https://www.dw.com/en/bosch-pays-90-million-euro-fine-over-d...

https://en.wikipedia.org/wiki/Volkswagen_emissions_scandal

Edit:

Fair, they're ideal for city bikes, stop-and-go traffic, and the flat Dutch landscape where they're produced, where the biggest "mountains" you encounter are the bridges over canals. Their city model has 310%, trekking 380%, and the new utility hub has 400% gear range, which you can use on a normal bike, bakfiets, or speed pedelec.

https://enviolo.com/news/enviolo-launches-the-utility-hub/

flexagoon 2 hours ago||||
> Only seems worth it if you already have an extremely nice bike

How nice should one's bike be that you'd rather turn it into a mediocre ebike for the price of buying a good ebike?

DonHopkins 1 hour ago||
Extrordinarily nice! AAH! HA HA! HA HA! AAH! GERONIMO! HA HA!

https://www.youtube.com/watch?v=Wg_1LOYLPsM

KennyBlanken 3 hours ago||||
You can get a nice ebike for that money if you're even slightly patient in waiting for a sale to hit.
CitrusFruits 3 hours ago|||
Bimotal is removable after the installation: the motor and battery can both be taken off in under 30 seconds and you're left with just the cables and a specialized brake disc. I'd say that's its main differentiator. It is definitely more for premium bikes though and even then isn't for everyone.
Toutouxc 1 hour ago|||
As a mountain biker I don’t see the appeal of this. Yes, this rather expensive solution could transform my nice bike into a shitty e-bike, but the point of having a nice bike is to avoid a shitty experience.

A proper e-bike needs to be designed as an e-bike from the beginning.

thih9 3 hours ago|||
Also:

* you cannot install them on bikes with a rear rack. Here most city bikes have them.

portly 3 hours ago||
That made me question who this is for. Looks like it's only for racing bikes that have taken off the rear mudguard. And those bikes are typically used to exercise..

Which makes me wonder about the cleaning after it rained..

KeplerBoy 2 hours ago|||
Nobody who rides a road bike would be seen dead with something like this. There are proper road ebikes for that.
Toutouxc 1 hour ago|||
Only commuter and bikepacking bikes have mudguards, almost nobody puts one on a mountain bike or a proper road bike, regardless of whether they’re electrified. This looks like it’s more for these “sporty” categories of bikes.
ryukoposting 5 hours ago|||
And, don't forget: easy to steal off even a well-secured bicycle.
Jerry2 4 hours ago||
That's not a problem in Asia.
seanmcdirmid 3 hours ago|||
Only because there are so many targets to steal from. And by Asia you mean China, where E bikes are rarely very fancy and often the size of a moped (except for the ride shares, which are still bricks and GPS tracked). And judging by the noise level at the hotel I stayed at in Chengdu a couple of weeks ago, they definitely come with theft alarms.
wahnfrieden 3 hours ago||||
Bike theft common in Japan
szundi 1 hour ago|||
[dead]
BloondAndDoom 1 hour ago|||
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
reorder9695 44 minutes ago||
I'd be quite worried about breaking it in the not unlikely event of a crash, additionally it looks like it could quite significantly limit how low you could put your seat down on a mountain bike, so that would get in the way. Even if you got your seat down, it would add a significant amount of height above the tyre so you mighn't be able to move your arse far enough back to shift your weight property. It's also adding nearly 4kg weight relatively high up which probably isn't the end of the world but would be better if it wasn't so high up.

It says on the website it will fit hardtails but not full sus, and that it isn't recommended on knobby tyres due to performance which isn't ideal either.

I could be wrong on all of this but those are just the concerns coming to mind as another mountain biker.

veunes 49 minutes ago|||
Wet-weather performance in particular seems like the thing I'd want to see independently tested
calmbonsai 6 hours ago|||
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.

rtkwe 5 hours ago|||
It looks like their solution is to make it easy enough to install and remove you take it with you. My thought would be security bolts so the pool of thieves is at least limited to people with the right bolt head. Also it has a big battery built in so
SoftTalker 5 hours ago||
Thieves will just take the whole bike.
Gigachad 4 hours ago||
Tbh solving this is one of the actual use cases for things like flock cameras.

Simply bolting things down harder is still defeated by a battery powered grinder.

AngryData 3 hours ago|||
Theft is solved by making society better, not worse. Make people not want or reliant upon crime to survive.
mik1998 2 hours ago|||
No one relies on bike theft to "survive".
AngryData 1 hour ago|||
No one goes around stealing bikes just because they want to do bad things.
mik1998 20 minutes ago|||
There is a large amount of people who go around stealing bikes for fun and some cash; and often "street cred" or something akin to that.
barrenko 11 minutes ago|||
My brother in Christ.
a2800276 1 hour ago||||
That's right, people steal bikes because they are inherently evil and want to make baby Jesus cry.

I think it's ok to define "survive" as an addict who needs (<-also loosely defined) a fix.

You don't generally commit serious white collar crime, tax fraud or do crypto grifts to survive. For petty street crime, I don't really see any other motivation.

mik1998 3 minutes ago||
[delayed]
Toutouxc 1 hour ago|||
What are you basing that on?
adwn 1 hour ago|||
> Theft is solved by making society better, not worse.

Phew, good to hear. Here I thought it would be a hard and complex problem, with lots of unknown unknowns, difficult political compromises, a generation-spanning efforts and many potential solutions with uncertain outcomes, partially contradicting each other.

Instead, we just have to make society better. So, what's step 1?

AngryData 1 hour ago||
Step 1 could be not turning the world into a an Orwellian nightmare and outlawing mass surveillance, from both government and private corporations.

And if you are still worried about theft in the mean time, you could try looking at wage thefts which has a value greater than all other forms of theft combined.

dreamcompiler 4 hours ago||||
Cameras don't solve crimes, Flock or otherwise, unless the cops consider the crime serious. It is almost universal that cops don't consider bike theft serious. This is beginning to change in a few cities but not most.
Gigachad 3 hours ago||
From what I can tell, they are mostly fully occupied with dealing with emergency situations and domestic violence calls. There isn’t the resources allocated to searching for bikes. Especially when there often isn’t much to go off.

Making the search process easier makes locating stolen stuff becomes more of an office job that’s cheaper to do so the math works out better.

DonHopkins 1 hour ago||||
But Google's AI told me that Flock cameras are full of gold, so I steal those instead of bikes!

https://www.techspot.com/news/113381-google-ai-told-people-f...

AngryData> No one goes around stealing bikes just because they want to do bad things.

But people go around stealing Flock cameras because they want to do good things.

jvuygbbkuurx 4 hours ago||||
It's actually solved by putting thieves in prison (by the help of flock cameras).
defrost 4 hours ago|||
Is it though? Does prison work as a deterrence to others?
blfr 4 hours ago|||
There's usually a fairly small number of criminals in the population and they have short careers. Otherwise, the whole enterprise of society wouldn't be viable.

So once you take them off the streets for a couple of years, or decades for the more hardened ones, it's fine. It has an added benefit of breaking criminal networks so the future adepts have no place to fence the stolen goods.

simondotau 4 hours ago|||
On one hand, you’re breaking existing networks; on the other hand you are establishing a social club for new ones.
KennyBlanken 2 hours ago||
That person is insanely naive - either very young, or very lacking in life experience and worldly knowledge.
Toutouxc 1 hour ago||||
Do you have any kind of education in this area? Because that doesn’t sound like the little that I’ve read about sociology and psychology.
KennyBlanken 2 hours ago|||
"It has an added benefit of breaking criminal networks so the future adepts have no place to fence the stolen goods" is probably the most naive thing I've ever heard.

I also think you have no idea how much it costs per prisoner per year.

I also think you have no idea how much harder it is for someone to get a job, housing, a partner, etc after they have a conviction. Or how much whatever life they had falls apart, which includes partners, friends, family. And guess what happens when you strip away all of someone's social connections? They lose that safety net, and are now dependent upon whatever society as whole provides. And in the US we have people saying "pull yourself up by your bootstraps" non-ironically, not realizing the whole fucking point of that phrase is that recovering from poverty in the US is extremely difficult.

That money is better spent on helping people who are not able to afford basic necessities, because that is why a lot of people commit property crime.

I suggest you actually open up some studies on this subject because you clearly have no idea what you're talking about. Or just open up a chart reflecting the economy over the decades and compare it with property crime rates.

The US has the highest incarceration rate in the world by both headcount and percentage of the population. How's that working for us? We have one of the higher property and violent crime rates among developed nations. Far higher than nations where criminals are imprisoned for rehabilitation, not to punish. Things like giving them a cell that looks like a bedroom, not pen in an animal shelter.

ajkjk 4 hours ago||||
The idea is that it lowers the number of thieves.
notourproblem 4 hours ago|||
[dead]
wahnfrieden 3 hours ago||||
Police here don’t even care to help if your car is stolen and you have GPS on it. Cameras and jail do nothing to help protect your property if the police refuse to work.
retired 3 hours ago||||
Where I live that’s a win win for thieves. Earn money stealing a bike, have a roof over your head and free food.
KennyBlanken 3 hours ago|||
Aside from the fact that there's little to no actual evidence (not funded by flock cherry-picking, and doing a lot of extremely thin correlation/causation nonsense...

No, it's actually solved by providing social safety net programs and managing the economy to have entry level accessible jobs that pay a living wage. People steal because they run out of other options. The cost of flock contracts would be far better spent on food pantries, job counseling, emergency housing...

There is nearly zero correlation between the number of police and the amount of crime.

taneq 4 hours ago|||
You don’t gotta be impossible to steal from, you just gotta be more annoying to steal from than the next guy.
a2800276 1 hour ago|||
Well said by somebody who's very obviously never used a bicycle as their primary mode of transportation ;)
Gigachad 3 hours ago|||
They will still steal your seat, lights, wheel, and any other bit they can get.

Sure you can use all number of locks, security bolts, and stripping the bike down yourself every time you leave it, but it’s sucks. You’d rather public spaces just be safe.

wafflemaker 2 hours ago||
Just follow the old Eve online adage - don't fly what you can't afford to lose.

If there's lot of theft and you can't store bike at a secure place - have a cheap bike.

Gigachad 5 minutes ago||
Yes that's the compromise we have had to live with. But some countries like Singapore and China are showing it is actually possible to just solve theft so you don't have to deal with your bike being stolen.
neves 5 hours ago|||
Can't use with mud guards
runamok 3 hours ago|||
These sorts of seat mounted mud guards would work: https://ass-savers.com/ (yes, the URL is funny and seems a risky click)
giardini 3 hours ago|||
And WTF is it about mud guards now?

When i was young all bicycles came with mud guard (then called "fenders") front and rear. Now they seem to be anathema.

Every bike I rode w/o fenders put a stripe of mud up my back!

mcv 58 minutes ago|||
I just got a new bike for my son (he's going to secondary school and needs a better bike), and was surprised to see how many kids' bikes came without fenders. What's up with that? Who wants a serious bike without fenders?

Of course most bikes still come with fenders, but that's also a major limitation for this device: you've got to remove your rear fender. Maybe this device acts somewhat as a fender, but the site says you can't use it in heavy rain, exactly when you need that fender the most.

pjmlp 3 hours ago|||
Being cynical I would say it is yet another way to upsell.

Here in Germany if you want to get a cheaper bicycle, other than flea markets, usually they make you mount the pedals yourself, doesn't have fenders, lights might also be missing, depending on the offer.

silversmith 1 hour ago||
Are you looking at performance road bikes? Fenders and lights are removed for weight savings, and for pedals there are multiple clip-in systems, you are supposed to install the pedals that match your chosen system.

If, however, they are doing that for commuter bikes...

pjmlp 1 hour ago||
Regular city bikes.

This is the approach if you go offers on regular supermarkets that also sell bicycles.

Personally I am never going to give more than 400 euros tops, for a new bicycle, it is either that or not much beyond 100 euros at a flea market.

Getting the bicycle stolen or worse, revenge damage when they fail to steal it, is not worth more than that.

Toutouxc 59 minutes ago||
I guess that’s the reason you don’t understand why bikes are sold without these things. €400 gets you a very, very, very low-end new bike, like just one step above “unsafe to ride”.

You often don’t get pedals on new bikes because you have your favorite pedals that work for you and anything that’s included with the bike goes straight to the bin, because it’s useless trash. You don’t get fenders, because you don’t usually use those on any kind of sporty bike. They’re heavy, they don’t usually work that well, they are often hard to use in bikes with suspension with longer travel or and they can rattle or simply break and fall off if you ride hard. You don’t get lights and reflective elements, because they’re heavy plastic crap that breaks and falls off. If you often ride at night, you probably own some kind of night gear, high powered LEDs, reflective stickers or spokes…

And obviously once that is the norm for “bikes” in general, then why not save a few cents on supermarket bikes.

culi 6 hours ago|||
Personally I also don't see the niche they serve. If I'm going far away I take a train or a car. I pretty much exclusively use my bike to ride to a nearby grocery store or do other close-by errands. If I'm doing short errands like this, I really prize being able to get on and off quickly and lock my bike up quickly. A device like this needs to be taken with you when you leave your bike to prevent theft. It's a whole nother step and a lot of extra weight
edmundsauto 5 hours ago|||
Are you elderly, differently able, live in extremely hilly or hot terrain, or only willing to bike if it’s half the current effort?

That plus “already has a bike” is a massive market.

garciasn 5 hours ago||||
People who already invested in an expensive traditional bike and want to have the option to add electric support to make trips easier and faster without having to deal with selling their current bike and buying an even more expensive e-bike.

There’s also the fact that many people have bike racks that are fine for traditional bikes but not the additional requirements necessary for some (most?) e-bikes such as weight and strength.

—-

Just because it doesn’t work for you and your specific worldview doesn’t mean others wouldn’t see value in it.

whycome 5 hours ago|||
When I read your comment before the article I thought it was some sort of complicated contraption in multiple parts. Instead it seems pretty compact and easy to disengage. I’m not sure what you’re missing in terms of a niche either. Anyone who just wants to ride with less effort but use their existing bike?
leptons 26 minutes ago|||
I made one in 1985 for my 10 speed bike, it was pretty fun for a while. I was in my early teens at the time.
Fnoord 5 hours ago|||
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.

Toutouxc 33 minutes ago|||
If it’s for a chill cargo bike, just get a hub motor kit. It’s the proper solution, there are tons of them and they are cheap and durable.
Reason077 3 hours ago||||
Conversion kits that add a front hub motor are relatively affordable and easy to install. Should work with most cargo bikes if you can find one that's compatible with your wheel size. Something like: https://swytchbike.com/
andrewshadura 6 minutes ago|||
Also: I'd not recommend hub motors with cargo bikes. There is a reason all cargo bike makers switched away from hub motors. They're low-power and often not strong enough mechanically.
andrewshadura 8 minutes ago|||
Swytch are great in marketing, not so much in engineering. Very proprietary system that keeps changing every year or so. We have one kit, but I'd not buy from them again.
caminante 4 hours ago|||
Front mount or trailer for kid could work, but this seems inferior to your ebike.
MisterTea 4 hours ago|||
Are there any mechanically coupled solutions that can be field installed by the owner?
andrewshadura 2 minutes ago|||
There's a bunch of motors installable instead of the bottom bracket. E.g. from Bafang. You just connect it to a battery and that's it. The controller's inbuilt.
flir 4 hours ago|||
Swytch Bike is one. Hub motor.
Lord_Zero 6 hours ago|||
I had a gas powered goped that worked that way years ago. Had all those problems but it was fun. The second you hit any water the drive shaft would just spin against the tire.
taneq 4 hours ago|||
I remember back in the 90s some guys at my school fitted a whipper snipper motor to a 12” kiddy bike with a friction drive (I think it was a skateboard wheel fitted to the output shaft).
tadfisher 6 hours ago|||
They could have made basically the same thing except with a sprocket to help drive the chain.
Toutouxc 28 minutes ago|||
Go ahead, sit down with a piece of paper and try to design it in a way that doesn’t prevent shifting, doesn’t skip under load, doesn’t require you to use a longer chain, works with rear suspension and doesn’t interfere with your legs.
ryukoposting 5 hours ago|||
Chain moves side to side with gear changes, and adding extra chain tension with an extra drive sprocket could make the deraileur angry. Also, chain-tube geometry varies a lot. Not impossible, just more complicated than it might seem.

I ride an all-original 1970s steel-frame road bike, which seems like a prime candidate for this sort of product. I'm certain no sprocket-based design would fit it. I'd buy one of these if there was any way to lock it up.

andrewshadura 1 minute ago||
It does not if you use hub gears.
StopTencent 7 hours ago||
Tires wear out super fast. It's hard to say there is a market for this other than the uninformed.
selfhoster1312 2 hours ago||
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.

fulafel 22 minutes ago||
What do you mean by changing motor speed? It has a cadence sensor so should work like normal ebikes. Pedal faster for more speed, stop pedaling for less speed.
veunes 44 minutes ago|||
The strange part is that they already have wireless communication in the system, so adding a simple handlebar remote doesn't seem like a huge engineering leap
DonHopkins 1 hour ago||
Throttled motors on ebikes are terribly unsafe, compared to pedal assist central motors. I just got rear-ended by an illegally hot-rodded fat bike with a throttle, when the asshole lost control of his bike after hitting my rear wheel trying to pass at illegally high speed without bothering to ring his bell, and he flipped over and spilled onto the bike path.

I was fine, but surprised he so carelessly and thoughtlessly sneaked up on me and tried to pass when I was already going fast downhill off of a bridge over a canal, on my legal eBike with 25 kph maximum assist.

Pedaling makes you pay attention and gives you direct control over the speed, and the assist drops out once you're going >25 kph. The asshole who hit me from behind probably didn't have time to find the throttle with his hand, and was never really in control of his bike or paying much attention up to when he freaked out and hit me.

What to do about fatbikes endangering our safety?

https://www.reddit.com/r/Netherlands/comments/1knza1c/what_t...

Fatbikes in the Netherlands 2026: What You Actually Need to Know

https://bikefair.org/blog/fatbikes-netherlands-guide-2026

selfhoster1312 1 hour ago|||
To be clear, when i said we need controls on the handlebars, i was talking about an "assist level setting" like you have on the app, not a throttle. I had this on all my electric bikes: a button and a small LCD to indicate assist level 0-3.

Although in my experience when your bike/cargo is heavily loaded, a throttle is nice to get running, especially when stopped at a red light going uphill. Borrowed one like this and it was really useful. But i agree with your sentiment i see many people with throttled bikes going really fast and careless.

Galanwe 1 hour ago|||
This drives me mad as well. Electric bikes should be limited to 25kph and non throttled in Europe, yet half the bikes I see are both, and drive recklessly.
tgv 1 hour ago||
The other day I was passed by one which kept up with the cars on the main road, which has a speed limit of 80km/h. Most cars don't go full speed there, but will reach at least 60km/h . On it were two young boys without helmets. It's insane.
sigio 16 minutes ago||
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.
pvillano 3 minutes ago||
Is it compatible with the AMD mountain bike?
LeoPanthera 7 hours ago||
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.

https://rk.nvg.ntnu.no/sinclair/vehicles/zeta.htm

willtemperley 4 hours ago|
Yes my grandfather had one. It worked well on flat terrain. I think it used a motorcycle battery so batteries were easy to find and charge.
esel2k 16 minutes ago||
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.

mvdwoord 1 hour ago||
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.

https://nl.wikipedia.org/wiki/Spartamet

veunes 42 minutes ago||
I can see one audience: someone with a bike they already like who only occasionally needs assistance and wants the whole thing removable
jwr 21 minutes ago||
Once you try a (good!) electric bike, you don't really want to go back. Life is just so much better. For urban commuting, you no longer think about heat (getting sweaty), distance, inclines, wind, etc.

Obviously I'm talking about good electric bikes, with mid-mounted engines that detect pedaling strength. These feel great, unlike electric motors strapped to bikes, which feel like, well, electric motors strapped to bikes.

u1hcw9nx 1 hour ago|||
If the road is even little bit wet like after rain or morning mist, the dirt from the road ends up in your backside without fenders unless you drive very slowly.

Find a bicycle without mudguards and ride very slowly, or just ride on clean roads on a sunny days.

tgv 1 hour ago||
When it's wet, the engine will have less traction too.
anthropic-dario 1 hour ago||
[dead]
yazaddaruvala 7 hours ago||
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”.

prmoustache 3 hours ago||
That is the same for most bicycle parts that you can remove with a small multitool and optionally a cable cutter yet most thieves just grub the whole bike as it is more convenient and it provides the getaway vehicle.
left-struck 2 hours ago||
Most bicycle parts don’t cost thousands of dollars though
NAR8789 6 hours ago|||
pitlock pit stoppers?

https://www.pitlock.de/en/set-sichert-2-innensechskantschrau...

wazoox 33 minutes ago|||
You don't even need to unscrew the motor : simply pull one-handed the seat release lever, and leave with both the seat and the motor attached.
loeg 7 hours ago|||
In addition to the theft concerns, it's also not a great product.
user- 6 hours ago|||
for the non bikers, to help us understand, whats wrong with it?
ctidd 4 hours ago|||
This is an inherently inefficient design, where that inefficiency means increased 1) battery use and 2) tire wear.

From a cyclist’s perspective, this is fundamentally a stopgap product for “curious” customers dipping their toes into e-bikes. I don’t say that necessarily to criticize it. There’s a place for a product that someone can put on any old bike and see if they want to buy a more expensive long-term solution. But that doesn’t make it a product I’d recommend.

The tire wear problem is significant enough that there are heat resistant tires specifically for this type of drum application (designed for old-style indoor trainers, not for use on the road), because use on a drum will cause premature wear for normal road tires.

mswphd 4 hours ago||
it's also likely mildly more dangerous than a standard ebike, as ebikes typically overprovision their brakes. A customer putting this on a standard bike (especially a disc brake bike) might have less stopping power than they want on an ebike.
Toutouxc 44 minutes ago|||
Why “especially a disc brake bike”? They’re the most reliable and resilient system so far, especially compared to rim brakes (V-brakes or cantilevers).
prmoustache 3 hours ago||||
The requirement for better brakes is more a myth. Yes an e-bike is heavier but the rider + bike pair is not significantly heavier so e-bikes don't really need better brakes as most of them aren't going significantly faster than regular "muscular bikes", especially the legal ones that have an assistance speed limit. Rider weight makes a much bigger difference yet bike brands don't insist on speccing more powerful brakes on bigger riders.
Toutouxc 37 minutes ago||
As an experienced mountain biker I’d love if the downvoters could engage with the comment. I agree with it. A proper legal e-bike, especially when clamped to 25 km/h or a similar limit, doesn’t really need that much stopping power than a comparable regular bike. Maybe the sum of all the factors (often less experienced riders, slightly more speed in some situations, slightly higher weight) warrants going to a bigger rotor diameter or a different brake pads compound, which is how it’s usually done. But it’s still nothing compared to speccing cargo bike brakes or tandem brakes, there you really have to account for the weight and go all the way to like 200mm rotors and four-pot calipers.
loeg 3 hours ago|||
I wouldn't worry about it in this application, because the added weight and power is so minimal. Also: many of the cheap ebikes ($1000-1500 range) have absolutely terrible, underprovisioned brakes.
mswphd 3 hours ago||
only real worry I'd have is a scenario like

1. someone has a cheap disc brake bike for pleasure rides (mostly in the sun)

2. they get something like this for commuting or whatever

3. now they're on their disc brake bike most days (including when it rains), going faster than they're used to

it's not the end of the world, but it also doesn't seem great

loeg 5 hours ago||||
Destroys tires, very limited range/power due to poor power delivery from motor to tire. Parasitic drag when coasting or battery is dead.
NegativeLatency 6 hours ago||||
Limited power delivery, horrible in the rain, prevents using fenders
tokioyoyo 6 hours ago|||
Rain is an interesting thing, because the number of bikers in Tokyo goes down maybe by 60% or more the second it rains. I kinda avoid as well.
decimalenough 5 hours ago||
Nothing Tokyo specific about that, biking in the rain is dangerous and generally sucky. I have good all weather gear, but I still end up with wet shoes/socks and muddy spray up my back and legs (yes, I have a mudguard, but it's not 100% effective).
lostlogin 6 hours ago|||
Would you need a fender with it there?
NAR8789 6 hours ago||
Yes, without a fender my rear wheel throws mud all over my back. This is not the right shape to serve as a mud shield
lostlogin 5 hours ago||
It’s directly above the wheel. I just use an ass saver and while that’s way inferior to your setup, it reduces the volume thrown up a lot.
UqWBcuFx6NV4r 6 hours ago|||
They aren’t reliable or efficient.
_kidlike 3 hours ago||||
in addition, it also has not a great name... the word Oxis in Greek means "sharp", not agile. you can look for "οξύς"
ls-a 6 hours ago|||
[dead]
emdash 4 hours ago|||
They could ship it with a pair of those bolts where the heads break off during installation
schainks 6 hours ago||
This product is for people who live in safe neighborhoods and bike a lot, aka not the average American.
flexagoon 2 hours ago||
Where do you live where people bike a lot and yet bike theft isn't common?
sjaak 3 hours ago||
Funny, a modern version of WWII era technology

https://en.wikipedia.org/wiki/V%C3%A9loSoleX

Galanwe 1 hour ago|
Solex got used much longer than post WWII, the engine is very easy to service. I had one when I was 15, and most of my friends did as well. Everyone in the village had either a "solex" or an old "mobilette".
NDlurker 6 hours ago|
If I ever convert my bike to electric, I'll probably go with this https://www.swytchbike.com/
Bjorkbat 4 hours ago|
I actually bought one of these and love it. My road bike is indistinguishable from any other normal road bike with the exception of it being much easier to get around now.

From experience I can say that it seems like a lot more common sense to simply replace the front wheel of your bike with a wheel containing an electric motor, rather than attaching whatever Asus is selling to your bike.

shrx 21 minutes ago||
Do you feel the power is sufficient? It says it's only a 250 W motor. What is the battery range?
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