Copenhagen wheel
- Thread starter Gubbins
- Start date
An interesting idea,but I cannot find any independent reviews. The price seems to be about 699.00 dollars plus vat,that price is close to buying a complete e-bike with existing proven performance.
To succeed I think the price needs to be about £299.00. So that it creates a market remote from the complete e-bike. Such a price would be possible but need Dyson style high volume production.
All the foregoing assumes it will climbs hills.
KudosDave
To succeed I think the price needs to be about £299.00. So that it creates a market remote from the complete e-bike. Such a price would be possible but need Dyson style high volume production.
All the foregoing assumes it will climbs hills.
KudosDave
Wouldn't they have to use lipo to shape the battery to fit? Says to me proprietary. Expensive to replace. And any fire and the whole shebang is toast.
Plus it's not $899 even in the US, it's $899 + ~19% state sales tax, + shipping, or in UK + shipping + 26% VAT & import duty, + £9 import processing fee. Yikes.
Oh and there would be nasty American consumer law to contend with (so pay with a credit card and your cc provider is liable under UK law... I think).
Plus it's not $899 even in the US, it's $899 + ~19% state sales tax, + shipping, or in UK + shipping + 26% VAT & import duty, + £9 import processing fee. Yikes.
Oh and there would be nasty American consumer law to contend with (so pay with a credit card and your cc provider is liable under UK law... I think).
D
Deleted member 4366
Guest
They featured it on BBCs Click this morning, but they didn't give a lot of detail. There might be a bit more on the long version of Click that you can watch on the BBC iPlayer.
it's doable at $350 in China, £399 in the UK with a 36V 5AH battery with a wireless torque sensor.
It's got a 48 volt battery though, which given it's small size must be very low capacity. I rather think they are making the common mistake in the design of relying far too much on the regeneration to make for an adequate range. That won't produce anything much worthwhile.
.
.
I was watching it on Click this morning - it seems that they are more interested in the app than practical stuff like range and torque. If the principal interest behind it is to make a light and cheap assist kit, we have almost all the required elements already mass-produced: 250W geared motor with built-in motor torque sensor like the one in the Woosh TS, just move the controller and battery inside the rear rim and plug in the LCD. Job done.
Up to 30 miles is quoted as it's maximum. So, in turbo mode in a hilly place you may get 15 if you're lucky I would expect. Possibly less? For many people, that's enough to get too and from work. For someone wanting to go riding with their friends on a day out then I don't think it'll be up for the job.
That said. It's 6kg odd which on a lightweight bike isn't a mass to ride around normally. My Boardman is 9.5kg so it would still be almost 10kgs lighter than my Kalkhoff.
I suspect they're going to sell a lot of them..!
That said. It's 6kg odd which on a lightweight bike isn't a mass to ride around normally. My Boardman is 9.5kg so it would still be almost 10kgs lighter than my Kalkhoff.
I suspect they're going to sell a lot of them..!
they use a DD motor (read heavy) on the copenhagen wheel. If you use the same geared motor as the Woosh TS (3kgs) with 20 3,400mAH cells (1kgs, 36V 7AH) and controller (300grs), the rear wheel would weigh about 4.8kgs including rim and freewheel, and the range is about 20-25 miles. The cost of the wheel made with Chinese components in London is about £250.
I was just wondering if spinning the lipo cells really quickly wouldn't agitate their molecules, leading to, er, volatility
Exactly my opinion too, I can't see this wheel fitting any present market and doubt it could create a new one.
There's precedent. US corporation Berkestrand launched the "Motorised Wheel" years ago with similar intentions, but it flopped. Their motor rights were sold to Sanyo who produced it as a front hub motor which was later used by Giant in their models from 2006 until recently.
.
.
D
Deleted member 4366
Guest
No room for the battery, but it's no big deal to have a single wire to a battery that can be fixed to the bottle fixings or anywhere else. So, a crank-drive with inbuilt torque sensor and bluetooth should be feasible.
the XMAX CD motor with bottom bracket torque sensor and LCD is about $275 from China. Member mechaniker wrote the manual for it. There is a little craze going on at the moment. Designers are busy creating apps so that lazy riders don't have to think for themselves or press buttons to control the bike.
I was thinking on a twist on battery, looking a bit like the Tonaro motor.
That looks and sounds awful in so many ways I can hardly begin to list them!
Reminds me of the old Cyclemaster versus BSA Winged Wheel cycle motors of long ago. The first had everything inside the wheel like the Copenhagen, while BSA put the motor outside alongside and it's larger fuel tank on the carrier.
.
Reminds me of the old Cyclemaster versus BSA Winged Wheel cycle motors of long ago. The first had everything inside the wheel like the Copenhagen, while BSA put the motor outside alongside and it's larger fuel tank on the carrier.
.
D
Deleted member 4366
Guest
Nice try, but no cigar!
I guess handing out grants to university graduates keeps them off the streets. Maybe it's like that thing where you give a monkey a typewriter and infinite time. He'll eventually randomly type out the entire works of Shakespear. So they give grants to a million graduates to develope an ebike in the hope that one of them will eventually come up with something useful.
Related Articles
-
MTF Enterprises announces acquisition of EMU Electric Bikes- Started by: Pedelecs
-
Wisper 806T folding bike wins Which? ‘Best Buy’- Started by: Pedelecs
-
Sustrans calls for protected cycle lanes- Started by: Pedelecs
-
Amazon launch their first UK e-cargo micromobility hub- Started by: Pedelecs
