Boosted Boards (YC S12) Unveils Its Magical Electric Skateboard
techcrunch.com
techcrunch.com
It is impossible to provide effective braking on a skateboard. The rider has absolutely no means of impeding their forward movement, so even if the board has effective brakes it's just going to throw them off. This is a minor problem if you're rolling around a skatepark, but it's a Big Fucking Deal if you're commuting in traffic.
It might be conceivable to overlook this failing if it weren't for the fact that tiny unsuspended wheels have almost no capacity to absorb bumps and road defects. Anyone who skated as a teenager will remember being thrown to the ground by a small piece of gravel stopping the wheel.
Add 2000w of tractive power and city traffic and you've got a recipe for disaster. Someone is going to die, their family will sue and they will quite rightly win enough money to bankrupt a small company. Boosted Boards are marketing their device as a vehicle and advertising it's suitability as a means of transport, which completely obliterates any defence they might have had. The laws against unlicensed motor vehicles will be enforced and the police will start confiscating them on sight. The electric skateboard returns to it's rightful place in the gimmick section of a sporting goods store, next to the mini-scooters and the moon shoes.
The bicycle has been a safe, practical and sustainable means of transport for over a century. Modern bicycles are lightweight, efficient and have excellent ride quality and braking. Short-range urban transport is a solved problem in all but marketing - Americans remain inexplicably certain that cycling is not for them.
[1] SF SOMA commuters seems to be the perfect market for this kind of thing since there are a lot of younger well-paid workers traveling 1 to 2 miles from a train stop, and the weather is nice for a lot of the year.
It's a matter of probabilities. The probability may be pretty high for lethal accidents, but the number of people currently riding them is pretty low. Additionally, those that do ride them are probably pretty skilled, since there isn't (currently) a mass market way to get one of these boards. And since the people riding them generally aren't a problem, cops have no incentive to really enforce existing law.
Now fast forward a bit when this board comes out. Now we have the potential for many times more people on electric boards, which are likely very over-powered. The already higher probability of accidents, multiplied by an increased user base means that there is more potential for a lethal event. And as soon as this thing gets popular, existing laws will be enforced.
I'm all for options in urban commuting, but I see lots of problems for this one. Who knows, maybe they figured out a way to make it controllable enough to make it safe. If that's the case, then they might have a shot at getting it approved under a new law. But that will take time to determine.
As someone who has both biked and longboarded to work/local grocery stores/etc., I infinitely prefer longboards (in fact I don't even own a bike anymore). Much lighter, easier to carry around (if you have a backpack that can accomodate it, then it's ideal), you don't have to find a place to lock them when you enter buildings (and fear getting it stolen), much easier to carry in public transportation (the Caltrain bike car at peak hours is complete chaos— and are you even allowed to carry a bike in the MUNI/Bart?), and so on.
I've seen some people with foldable bikes, not sure if those solve all of those problems.
You do raise valid points wrt the riskiness of the device, but I still think that there's progress to be made in short range urban transportation.
Still, for flatter locales, I could see longboards being viable modes of transportation.
The same applies to the "tiny rock pitches you forward" argument, which I can speak to from experience. On inline skates I can plow through grass, gravel, potholes, anything, by shifting my weight back as I go over it. If something in the road catches you by surprise that's another story.
EDIT: For the rest of my counterargument, I turn to xkcd:
Physical skills have a learning curve. Whether riding a bike or driving a car, some significant skills acquisition is needed before safe use. For cycling, first there's existing cultural folk knowledge on learning to ride a bike (e.g. what you learned as a kid). If you want to be a properly skilled commuter, then you'll really want to brush up on additional skills ala Effective Cycling or a similar program.
I don't see this longboard as being particularly different from either cycling or driving, except that it's new. Living in a very hilly part of the USA, I love that they've designed for that from the get-go.
One major problem there: sidewalk construction isn't sign-posted. I ended up in the hospital because a two foot section of the sidewalk on my work-route had been replaced by sand. That was long enough for my roller-blades to stop and my face to keep going, neatly landing a couple feet after the concrete picked back up.
After four broken bones and a dozen or so stitches from roller blading and cycling accidents, I've decided to stick to walking and public transit.
I don't see how that's possible with solid wheels with such a smaller diameter.
That's a huge number. By one source cyclists are 10x more likely to die per each mile traveled than motorists.
Should bike makers be "rightly" sued out of existence? Should we ban bikes completely?
It's impossible to prove, but replace bicycles with skateboards and the fatality rate would shoot up.
However, that's an unnecessary measure of success. The board just has to find a big enough customer base to be profitable. There's room in the world for many different kinds of transportation.
As for legality - certainly there are concerns, but unlike the segway, this board is subtle enough to fly under the radar for a while.
> It is impossible to provide effective braking on a skateboard.
I repeat, the wheel is turning, not being turned by inertia and friction.
As for the breaking, I can train myself to lean back when I hit the break, and lean forward when I hit the accelerator. It's not that hard.
PS: I would hope to Jebus that someone would be wearing a helmet and other protective gear with this.
Nothing can stop faster than "it's wheels can hold friction". But on a bicycle when you brake hard then momentum is transferred on to the front wheel, which is typically ahead of where the bulk of the weight (the rider) is situated.
"You can stop any type of board-device and stay on, as long as the friction between the board and the rider is greater than the wheels and the road."
On a skateboard, the front wheel is MUCH closer to the center and the centre of gravity is MUCH higher. You'll be flung off if you stop as fast as a bicycle with properly maintained brakes can safely.
Edit: I really want to prove this, but the only way I can think of to do it is you buy one of these for $1200, I buy a bike for $1200 and we spend $1200 in airfares to meet somewhere and try it out. Perhaps someone with physics qualifications can weigh in?
There is simply more inertial mass on a Moto, which allows you do use the front brake to its full potentail without pitching a faceplant. That and the suspension absorbs some energy. Also, the rider position is usually COG to the rear.
On a bike, your body position on drop bars puts you more COG forward, steeper head angle, more levered over the front friction patch (tire/road). The bike is light, suspension if any not as robust, its prette easy to stop a 20lb bike vs a 250-500lb moto, and for you to fly off. You are like a pole vaulter at 60 deg vs 45deg on the stick (not precise, just directional)
Normal skate is same thing, its light, close to ground, The board has a low COG. The rider a much higher one. The board has no suspension. So, it can stop on a dime if it meets and object that makes one wheel "not round". You are like a pole vaulter at 90 degrees.
It it possible to ride like a ninja, super low and crouched to the back and de-weight at precisely the right time to go over XYZ obstacle. Maybe. But the issue really is one of probabilities. At what stage do you not foresee the obstacle? And heaven forbid an hazard that is only slightly more complex, say, 10-20 meters of sand or grit on the tarmac, that you cant just skip over. That is a very normal type of defect to urban road surfaces. Ther is a reason they have "street sweepers" and alternate side parking and all of that.
If the issue is - is an electric skateboard more dangerous than a bike? well, then of course it is. You're less visible, less stable, and have less braking ability and much smaller wheels.
But that's not to say you can't safely brake a skateboard without throwing yourself off the front. Like any device - motorised or not - it's up to the operator to control their speed for the conditions.
The frequency of this hazaard is more the problem. I skated in college to work all the time, but had the benefit of clean/smooth/concrete. It was a great mode of transit, for that. Who knows maybe someday the will have such lanes for these things?
& Obviously, the enforced stop scenario sucks on bike. Think, NYC taxi-cab doors, and etc. So thats fair.
With regards to breaking when you don't have a rock, curb, door in your face...You can program anti-lock braking into an electronically controlled breaking system. If you have enough understanding of the friction of the rider to the board and the boarder is experienced enough to know how position themselves during braking, that system should win as it can avoid skidding. Regarding experience level: on a bike it takes some experience not to just use the front brake only and drop your head on the pavement.
Until we see some stats about which group actually sustains more serious injuries, commuter bicyclists or commuter boosted boarders, the jury is still out.
You seem to take this product as a personal attack on cyclists. The more unconventional vehicles on the road, the better for everyone.
Longboarders have been commuting at high speed in traffic for decades, this is no different.
Power and braking, even on hills
We can electronically limit the top speed without sacrificing the
power you need to tackle hills. Steep San Francisco hills become
easy to climb. And on top of that, we've added regenerative
braking, accomplished using the motors. That means it's easy to
learn, easy to maneuver, and easy to control your speed, all while
recharging the battery.
...
How it works
You start with a handheld remote with throttle and braking control
and a battery gauge readoutIt might be conceivable to overlook this failing if it weren't for the fact that tiny unsuspended wheels have almost no capacity to absorb bumps and road defects. Anyone who skated as a teenager will remember being thrown to the ground by a small piece of gravel stopping the wheel.
Or a crack in tarmac/leaf/stick/drug needle, etc on a hill, etc
Your comment contains so many factual inaccuracies that it's not even worth debating. I hope that comments like this will start to be deleted in the future because they are the reason many people, including myself, refrain from participating here more.
Since when did obvious nuisances become "awesome".
I hope that comments like this will start to be deleted
I hope that comments referring to obvious nuisances as "awesome" will be deleted.
Here's the problem, as no one has quite caught on yet: The public transport areas consist of two main areas: Those for street-legal vehicles (cars, motorbikes, bicycles) and pedestrians (walkers, wheelchairs, baby carriages). There is simply no place for semi-powered vehicles on sidewalks. A moped or segway or motorized skateboard is an absolute nuisance on the sidewalk, and is a danger to everybody on the roadway. It doesn't fit outside of a mall-cop context.
Who is this "obvious" to? Clearly not you, since you think it's a horrible idea. Electronic skateboards have been around for quite awhile, and until now, they've been very heavy and mostly impractical. Yet, they are a viable product in the market and popular enough that people are making money selling them. One of the reasons this product is a leap forward is because it's lightweight enough to be used as a normal skateboard without electric power.
Simply stating that there is no place for this product on the sidewalk doesn't make it true, and I personally disagree with you. Stating that it is a "danger to everybody on the roadway" is absolutely absurd and simply untrue. Any vehicle that is under the control of a competent and observent operator will not be a danger to others in the least.
Here's the real problem: The contrarian, negative, hostile commenters on HN are the vocal majority in a lot of cases. Personally, I'm really, really tired of this even being accepted by the community.
I'm not "simply stating" anything. Most municipalities have ordinances against powered vehicles on sidewalks. It's simple. It's straightforward. It's sensible. It's correct. I'm talking law and you're talking this guy's a troll.
No. Please, please, please learn basic internet lingo before you abuse it. Please?
Instead you're lamenting the quality of commenters on HN... I really hate to say it, but maybe you should take a look in the mirror in this case?
Citation needed.
> It is impossible to provide effective braking on a skateboard.
I don't skateboard, so I don't know, but it seems like a lot of people are pretty effective at transporting themselves via skateboard. Besides, how does this contraption exacerbate the problem? If it's accelerating you to higher top speeds than a self-powered skateboard, then sure, but if the speeds are the same I don't see how this board could do anything other than improve braking.
I disagree. The bicycle is not the complete solution. compared to a board. Their actually huge. you rarely see a cubical that you could fit a bike in and most businesses don't have showers after your sweating bike ride to work. I think a board/public transit solution is a huge step.
1) Choosing your house or apartment: If you could board a couple miles to any type of public transit stop this decision really opens up. I emphasize ANY public transit stop. Some buses can only hold 2 bikes, and have you ever lugged your bike onto Caltrain. They really haven't learned anything from Europe about ergonomics of a train stop. Sometimes you have to lug your bike up 4 feet of stairs onto one of those trains. The board is light and small and EVERYONE on the bus or train could have one. And think how it open your transit schedule planing to choose from stops in a couple mile radius. The rent you can save from this decision will pay for your board. 2) Cubical space: How sweet is it that you could park your board next to your desk? I'm totally getting one of those hooks from the kickstarter video. 3) No sweat: Sure, I guess you could get a (massive) electric bike, but frankly who wants an electric bike? Not cool. The zero sweat solution to your commute would be one of these boards. I'm sure you and your colleagues would prefer if your didn't sit in meetings covered in and smelling of sweat from your morning ride. You'll have to get the exercise somewhere else.
First off, my board has a 600 watt motor and does around 20mph, which is fast in the city. I overtake most bicycles (people's faces are priceless). I cannot fathom what a 2000 watt motor would do, seems kind of life-threatening honestly. I haven't had any accidents, flew over the top a couple of times when I hit a high edge, par for the course when skateboarding, but I wouldn't want to go any faster.
My board does around 10 kilometers per charge, which is enough for a commute in the city. Not sure how well a 2000 watt motor would fare, I definitely could not accept less range. But my board has the older SLA battery, a lithium battery probably evens the score, while being lighter.
How easy is it to drive? You need experience skateboarding or you'll have quite a learning curve. The accelleration needs a good stance to not get dropped off the back, same with breaking vs. flying over the front. Turning is even more cumbersome than with a real skateboard because the board is so heavy, so you need pretty good technique (and space).
About safety: If you fall off, drop the remote etc. the board stops, the IR must be in your hand to activate and has a short range either way, so no chance of the board running away from you. As soon as you stop accellerating the board slows right down, and you can brake with the engine too (big advantage over a real skateboard). The engine is engaged all the time so you can't just roll like on a real board. Hopefully these guys solve this problem, would be useful if you're out of battery.
About sound, it's not annoying but not quiet either, your regular medium-sized electric motor. In the street it's not particularly noticeable.
About legal issues: It's illegal in the street but no one cares. I pass patrol cars all the time and most don't notice that it's not a regular skateboard, or don't care.
That said, 2kW is a lot of power! If all that could be instantaneously put down without wheel spin by a skateboard, I image it would shoot out from under your legs like a bullet out of a gun. Fun!
[1] 2000 / (75 * 9.8 * sin (15))
Which beings me to who and why would you want to ride down something so steep on a skateboard? I have a hill a mile from my house, thats ~200 vertical feet, and a around a 1/4 mile, its 12 degrees max on my GPS topo. I'm easily 35-45 mph on this, coasting. No hands descent would be NFW. 40 mph on a skateboard and there is a piece of gravel on the road, I'm not sure a Helmet will even help you with the face-plant potential.
But other than that, I think for a flat city it may be of interest. Or even a flat-ish area like soma/mission. But Manhattan? Nah. I'd pass. Maybe in the sub-urbs or exurbs? Where its just a long slog down a random road to the store or whatever would be more interesting. There is a lot of sprawl out there. And this would be cooler than a segway =D.
Bottom line = 30 degrees is sketchy, even ATGATT, on a Motorcyle.
___________
[Edit] Citaton: Just how steep is this?
A large avalanche in Montroc, France, in 1999, 300,000 cubic metres of snow slid on a 30° slope, achieving a speed of 100 km/h (60 mph). It killed 12 people in their chalets under 100,000 tons of snow, 5 meters (15 ft) deep. The mayor of Chamonix was convicted of second-degree murder for not evacuating the area, but received a suspended sentence.
TL;DR: Avalanche Risk? = Don't skate !
http://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Gra...
Here in Portland I think the laws would go unenforced for electric bicycles like in Copenhagen. I can't imagine any cop pulling someone over who isn't doing something stupid.
And laws can be changed. If these travel at roughly bicycle speeds, in bicycle right-of-ways, let's regulate them like bicycles, not cars.
I live and work in manhattan and for the summer I've been skating to and from work nearly every day (40ish blocks). According to my research, skateboards are considered "play" devices. Whereas bikes and all motorized vehicles are required to be in the street, skateboarders under 14 must wear a helmet and are not allowed to ride in the street. Older skateboarders have the option, but not the requirement to ride in the street. With the narrow streets, stop and go traffic, out of control cabbies, and people not used to looking for skateboarders, I feel much safer on the sidewalk.
There is a law that prevents the reckless operation of skateboards on sidewalks (http://codes.lp.findlaw.com/nycode/ADC/19/1/3/19-176.1), and I always take care to be courteous and provide plenty of space to all pedestrians.
Where there are bike lanes available, I'll take them, as that also seems to be a legal option, but I've had more run ins with pedestrians in bike lanes than on the sidewalk.
I've been stopped by cops twice and told I could not ride on the sidewalk, yelled at by private security and pedestrians, and had pedestrians step out in front of me without looking when I had complete right of way in the bike lane--causing me to have to bail.
This said, for any company looking to use skateboards to revolutionize urban travel, education campaigns at all levels will be necessary.
Being in Manhattan changes that somewhat. There are a large number of pedestrians there, so that helps with driver awareness.
As someone who lives in San Francisco and commutes using all three of bike, foot, and car (and back in college rode a skateboard around a large and busy campus) I don't think skateboards belong on the sidewalk - and definitely not motor powered ones.
Anything that has the potential to move much faster than a person running at full speed is extremely dangerous on the sidewalk for everyone involved: cars, bikes, and especially pedestrians. It breaks everyone's mental model for what could possibly be coming from where. Cars making a right turn do not expect bikes or skateboards to entering the sidewalk at 5-10 mph from their blind spot and so they almost never check. Pedestrians turning a corner don't expect the possibility of something oncoming that is moving too fast to stop before hitting then and so they almost never look. And so on..
As an individual YOU might be a considerate skateboarder who has learned when and where to be careful. That's great, but it doesn't change the fact that there are still idiots and assholes out there that are going to do idiotic and asshole things. The only system that makes sense is: fast-stuff in one place where everyone knows to look out for fast-stuff, and slow-stuff on the sidewalk.
If I (and my skateboarding kind) should be in the street based on speed or potential speed, then so should rollerbladers, scooters, segways, motorized wheelchairs, anyone able-bodied person (as they have the potential to start running).
It's a complex issue and courtesy and being alert go a long way... as well as knowing the law. Wherever I'm supposed to be by law (NYC law leans toward the sidewalk) is where I need to be, and other people need to respect that.
Yes, I do extend this to rollerbladers and scooters. Segues have a maximum speed of 12.5 mph and restrict their own downhill movement. I'd say they're sidewalk safe. Same with wheelchairs.
I applaud anybody who ride their board to work, but it's definitely not for most people. I think these boards are cool & will surely appeal to the skater & recreational crowd. The motors look like really promising tech as well so I think overall this is just a cool idea.
In my opinion, the laws should be uniform regardless of the device (e-bike, e-skateboard, e-whatever). This means restricted to certain types of roads, and possibly allowed on the sidewalk but with speed limits.
I expect some cities are mulling over the regulations on e-bikes since many of them (but not all) are basically scooters but with an electric motor and useless pedals.
TBH, it's not that big of a deal (over-hyped).
P.S. I only mean regenerative breaking isn't that big of a deal. This product actually looks pretty cool to me.
On the 3rd-4th setting hills are a breeze, on the 2nd setting you still work a bit, and on the 1st setting it really just makes up for it's weight imo (motor + battery = heavy).
You can also go into resistance / negative settings (-1 to -4) is you're a masochist (or in amazing shape).
... with a price to match ($4000).
However, I wonder how strongly this is enforced...
Edit: Another .ca.gov page says they're only legal on private property: http://www.chp.ca.gov/html/motors.html.
If not, why would I choose this over all the other electric skateboards?
Is it safe to use on the steep downgrades you have in SF? Is it useless to use when going uphill on those same hills?
It is very capable at uphill climbing and downhill braking. Our ability to stay standing on it is usually the limiting factor.
As for why you would choose this over others, it's the lightest, has way more power than most, and has a fantastic design and riding experience.
I don't think there's any way to make a safe powerful brake system for skateboards unless you're ready to do the stale fish maneuver, i.e. hit the brake button and grab the board, which, if there's a kiteboard-style handle, seems plausible
OTW, you have to learn power slides to make drastic decelerations, or bail off the front and kick the board behind you, but I almost got run over a few times in SF doing that. This also only works if you're not going faster than you can run. I found that out empirically too
Not really relevant, but i saw somebody a couple years ago ride a shopping cart full of bottles (probably weighed a couple hundred pounds) down the steep hill on Haight st from Baker to Divis. He's my hero
http://tctechcrunch2011.files.wordpress.com/2012/09/boosted-...
compared to
http://cdn.shopify.com/s/files/1/0119/3292/t/4/assets/slide_...
or
What I'm trying to say is: Is there a long board riding tutorial for people who just want to slowly roll around, aren't really in the "skater" scene?
In the promo video they're getting onto CalTrain. I'd love it for the quick ride over to BART/CalTrain station.
I'd recommend the longer "Pro" model if you're targeting longboard skateboarding.
It's amazing how much Indoboard helps. It will quickly give you an innate sense for where to position your feet, how far forward or backward to lean, and (for a shortbaord) when you're approaching that "oh shit" threshold where the board will fly out from your feet like a banana.
After that, get a longboard and start slow in as much empty pavement space you can find. Try to always keep your knees bent. Start with kicking in front (i.e. the way you're facing) with your back foot instead of in back with your front foot.
Beware of cracks.. beware of hills- even gradual ones. Mentally prepare yourself for some bloody knees, elbows, and palms. Enjoy- it is a really fun way to get around short distances.
Except that it has twice the price and half the range?
Ok, seems like it's significantly ligther (12 vs 40 lbs). Any other differences?
Stronger motors, but still same speed .. strange
It doesn't even look like a skateboard. I think the reason Boosted Boards looks so awesome is the fact it actually looks like a longboard... with a motor!
Also, the difference in weight is huge. 40 lbs is something that I need two hands to pick up and is a pain to carry. Bringing the weight down to just +4 lbs over the original longboard means this is something I can actually carry under my arm.
It’s boards are just 12-15 pounds, only twice as heavy as the
lightweight, top-of-the-line 7 pound Loaded boards they build their
electric motors into.
12-7=5lbs of equipment. Assume the motors, drivetrain, and casings take up 3lbs, that's 2lbs for batteries. Assume 200Wh/kg Li-on batteries, which work out to 90.6Wh/lbs, for a total system capacity of 181.2 watt-hours.The watt-hour is a simple unit. A 1 watt-hour battery can run 1 watt of load for 1 hour, or a 6 watt load for 10 minutes, or a .5 watt load for 2 hours.
A 181.2 watt-hour battery will be discharged after running:
A 2000 watt load for 5.436 minutes.
A 1000 watt load for 10.872 minutes.
A 500 watt load for 21.744 minutes.
A 250 watt load for 43.488 minutes.
A 100 watt load for 108.72 minutes.
The worst case scenario is even worse than you'd think, since electrochemical batteries don't have a flat discharge curve: the harder you discharge them, the less capacity you have.Boosted advertises their 2000 watt motors in bold print, but if you actually ran them that hard for any length of time, you'd discharge the battery.
"Any sufficiently advanced technology is indistinguishable from magic." -Arthur C. Clarke
http://metro-board.com/low_cost_electric_skateboard_buynow.h...
Serious question by a non-skateboarer: Unlike the Segway this doesn't provide any stability assistance, right? How safe would it be for a newbie to start using this?
I'd be worried about falling off this thing. AFAIK, the Segway goes to great lengths to mitigate that risk [although GWB managed to defeat those systems :)].
The acceleration stability problem for electric longboards is actually totally solvable (and solved, just not in a commercially-available machine) by detecting the rider's weight distribution.
I built a prototype back in '06 that (unlike the zboard) had the weight sensing system distributed over the entire deck, so there was no fiddly stance that you had to maintain.
It was super intuitive to ride, even for beginners, and had just an on-off switch as a controller (I used a little car-alarm-style key fob).
I teamed up with a buddy in Vancouver to improve it, and we converted it from a single rear hub motor to dual front hub motors (so no belts or anything to wear out or break). We showed it off at the Bay Area Maker Faire in '07.
On the trip back our prototype got stolen, and real life intruded, and we haven't done much with it since. I'd love to get another unit put together soon though.
http://3wdm.blogspot.com/ for more info.
Also, is this a full electric board, or do you have the option of pushing and then you can use the motor when you want to?
So I think it could work as a non-powered board, but not very well.
Skateboarding today is forever evolving and the electronic skateboard should evolve with it. Way back when the mega jump was created guys would hold onto motorcycles to gain enough speed to get super air and do insane tricks. I wonder if this technology could give professional riders the ability to gain infinite (or seemingly) amounts of speed.
I live in downtown San Jose, and _alot_ of people tool around on long-boards already; I've been thinking about getting one and I'm a dedicated cyclist. The city is quite flat, and the bikelanes and side-walks are wide and nearly empty. Combined with a high bike-theft rate, and this would be a great way to scoot around.
So even if it might not work where you live, there are places where this contraption fits perfectly.
Can it be used as a normal skateboard when the battery is dead?
How loud is it?
Is there a certain terrain or area which suits these boards or are they good for any urban street type scenario.
At that price, I can see no advantage over a bike or even a small motorbike. Wondering is this something that people think will do very well in the market they are targeting?
I haven't been able to figure out how to control my speed on a hill on a sidewalk (not wide enough for turns, and I can't really powerslide yet).
This product presents no more danger to the user or the general public than does a normal skateboard/longboard.
So obviously yes, just like a bike or skateboard, don't expect to just be able to hop on and cruise from day 1.
Three times lighter of that first gen electric skateboard. That means 10 lbs.
Also, why do they keep showing people walking their boards up stairs in the video, seems counter-intuitive.
It also looks like they have a belt per wheel, so there's a good deal of redundancy. Because there's apparently no differential gearing it means you have to lift up the outside wheels in tight (e.g. walking speed) turns, but that often happens naturally anyway on a skateboard.
Anyone else reminded of Dean Kamen's predictions for the segway?
I can't imagine how tours would be able to operate 12-15 mile 2 hour "walking" tours otherwise. You're able to see a significant part of a city from eye level without a huge amount of physical effort.