VELLO BIKE+ The First Self-Charging Electric Folding Bike
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- Опубліковано 16 вер 2016
- The lightest and most compact electric folding bike in the world!
Titanium electric folding bike, weighing less then 12kg (26lbs) and with the smallest fold on the market!
ks.vello.bike - now live on KICKSTARTER
Does it have internal hub gearing? Or is it a fixie? Battery capacity?
Hi, how can I purchase a vello bike in UK? Do you have a retailer or a branch based in UK? Thanks
Amazing project!
Genial saludos cordiales desde Patagonia Chile
Can I make a bunny hope on it? Weight is 105 kg
bravo velllllllllo
Very good
where can you buy vello bikes in the UK...
www.bikefix.co.uk/vello-bike
the prices are outrageous
hi, thanks for the reply, I understand what you are doing, but I believe the braking going downhill etc, will only add a few percent to the battery range. You don't give any figures. Obviously you can go any distance on a bike without assistance, but with low assistance I can see you could go 30km, but that is no different than any other light electric bike. If the bike is being sold, why are there no independent reviews,
Malcoln
available in India??
Hi Muhammed, yes we also send our bikes to India - however not the electric ones. Here our models: www.vello.bike/en/collections/bikes-accessoires. Best regards from Vienna
Wow, 3 years later, and nothing? No company website or list of retailers/how to order? Great looking bike. Did it not get past funding? I'm in Korea. Bike looks solid, lightweight, and good, but....a bit pricey.
Hi Canadianroot, why you think so? We have tausend of VELLO bike+ on the streets already. Our company webpage is vello.bike and we have also a lot of Korean costumers already too, check our facebook and instagram at facebook.com/vellobike
@@GustavoM90 Oh, thanks. Wasn't aware of that.
@@VELLObikes Thank you. Where can I see/try the bike here in Seoul?
#canadianroot as I said to you! Just keeping the battery at the same level means theoretically you do not have to charge ever, so you do not need to UP-carge the battery, there is no point of doing this. I hope you understand. Thank you!
@@VELLObikes Oh, I was responding to Gus. I'm not quite sure about what he was saying. Do you have representation here in Korea so I can see the bike in person, or is it all online orders?
Lets either have info:, if you're serious. Background noise/music suggests something not very nice. I'd like to know more, but music = advert. Can you explain 'why the noise'
Christopher Fawcett where you can buy vello bike titanium in India
You are either talking about perpetual motion, or peddling harder to charge the battery. This makes no sense as inefficiencies mean it would make more sense to use the energy to provide motion for the bike than charge the battery. I just don't understand this product at all. As for 30-50 km on that size of battery? Maybe at slow speeds in dead flat terrain, otherwise not a chance.
If it was marketed as a very light folding bike that a single charge would take you 20 - 30km, I think that would make more sense, but would not provide the selling point of this mythical 'self charging'.
mmmm charging while pedalling....more resistance ftw
0:47 you said while pedaling, when you meant breaking. this will confuse people.
So if you don't use brakes then you don't recharge?... I never brake going downhill, I just go faster. Makes no sense.
@Computational Organogenesis The amount of energy generated would be absolutely nothing unless there was substantial resistance which completely defeats the point of an electric bike in the first place. The bike is supposed to help you, you are not supposed to help the bike. You would generate about a tenth of the energy you input so you would end up going 10 times slower/less distance than a normal bike without electric.
'During pedaling, kinetic energy doesn’t 100% fully transfer into stored electrical energy in your lithium-ion battery.
Much of it is lost through the process, which is why we don’t use kinetic energy as a widespread global clean energy source. Pedaling alone can require a lot of time to reach a proper charge.'
boxercycles.com/electric-bike-charging/
@Computational Organogenesis Sounds like you are letting your feelings get in the way of scientific facts here.
Generating electricity is very inefficient
There are several problems with the present-day approach to pedal power. First of all, it is important to know that generating electricity is far from the most efficient way to apply pedal power, due to the internal energy losses in the battery, the battery management system, other electronic parts, and the motor/generator.
These energy losses add up quickly: 10 to 35 percent in the battery, 10 to 20 percent in the motor/generator and 5 to 15 percent in the converter (which converts direct current to alternate current). (Sources: 1/2/3). The energy loss in the voltage regulator (or DC to DC converter, which prevents you from blowing up the battery) is about 25 percent (sources: 1/2).
This means that the total energy loss in a pedal powered generator will be 42 to 67.5 percent (calculation example for highest loss: 100 watt input = 80 watt after 20% loss in motor/generator = 57.5 watts after 25% energy loss in voltage regulator = 37.5 watts after 35% loss in battery = 32.5 watts after 15% loss in converter = 32.5 watts output = efficiency of 32.5% or energy loss of 67.5%).
You have to pedal 2 to 3 times as hard or as long if you choose to power a device via electricity compared to powering the same device mechanically
Furthermore, there will be an additional slight loss as the battery stands idle, and the charge efficiency (also known as "charge acceptance" or "coulombic efficiency") of the battery will deteriorate over time. And to make the calculation complete, you should actually also include the energy loss in the electrical device that you are powering (we won't do that here).
An energy loss of 42 to 67.5 percent of naturally means that it takes 42 to 67.5 percent more effort or time to power a device (say, a blender) via electricity compared to powering the same device mechanically. This can be considered an acceptable loss if you are using solar panels or a wind turbine connected to a battery as an energy source, but it becomes rather problematic when you have to deliver the energy yourself.
If you produce 100 watts of power and 42 to 67.5 percent is lost in the conversion, there is only 32.5 to 58 watts left to power the device. If you power the same device mechanically, you deliver 100 watts straight to it. You thus have to pedal 2 to 3 times as hard or as long if you choose to take the intermediate step of generating electricity and storing it in a battery.
www.lowtechmagazine.com/2011/05/bike-powered-electricity-generators.html
I can go on all day if your feelings are still clouding the truth.
I've been riding this bike for about a month ua-cam.com/users/postUgkxwC0IIeIomGQVeBWg-kKJaToZkLEFIA2W and a half now and I think it's fantastic. It helps me get to work on time every day since I'm able to fit it inside of public transportation rush hour. The price is great too, people are always shocked when they ask me how much I paid for the fold up and I tell them "200". It's easy to fold and installation when it ships is insanely easy. All you have to install when the bike arrives is one foot pedal, everything else is done for you. I do recommend you carry some sort of wrench to tighten any loose screws on the handle bar and seat whenever they get a little bit loose. Other than that I think it's a fantastic bike. Easily fits in the home, can fit inside a car trunk and can even fit in subway rush hour.