TK-1 does not change the bicycle structure in any way which means globally majority of the bicycles can be converted without replacing a wheel

[Woosh]

one simple thing that all bike manufacturers can do to make the conversion as easy as possible is a standardised front luggage block like the Brompton's.

 

[Nealh]

In the first vid, at 1:09 and 1:13, the chain goes well above the chainwheel, but at 0:55, it's only just above it, so two completely different systems.

Yes agree. In another vid on utube the chain line is very clearly above the chain ring and as you say an idler sprocket is used.
We will just have to wait to see full pics etc.

 

[Nealh]

And the price ?
Who knows, but this I doubt will be cheap.

 

[flecc]

Once again, just hype using a personality.

Whatever it turns out to be, it's just another e-bike which won't transform anything.
.

 

[PP100]

And the price ?
Who knows, but this I doubt will be cheap.

We have specially designed this for people worldwide who cannot afford a new e-bike or currently available e-bike kits. Other companies who are producing e-bikes are very expensive and usually pricing out customers in their price range.

They're setting people up for more disappointment if they don't price significantly below a basic kit or equivalent e-bike cost.

 

[Nealh]

Once again, just hype using a personality.

Whatever it turns out to be, it's just another e-bike which won't transform anything.
.

And quite a noisy one at that, not a game changer. Just someone trying something to re invent the like of the old GNG by the looks of it.

 

[flecc]

And quite a noisy one at that, not a game changer. Just someone trying something to re invent the like of the old GNG by the looks of it.

Which itself was a reinvention of the original Cyclone kit motor sold for decades around the world by a Taiwanese couple.

It's still on Tony Castles web site

(Tony was the joint developer with David Henshaw of the Nano-Brompton)
.

 

[vfr400]

It'll be a motor with a sprocket on it that clamps on either the downtube or the seat tube with some sort of adjustable clamping system. It'll differ from other chain-drives by having an included torque sensor, which could be as simple as a spring-loaded idler wheel or some sort of load cell with electronics, or the whole motor and sprocket assembly could be sprung on a pivot so that chain tension moves it and operates a hall sensor like a throttle. I'd choose the last way for simpler construction. In principle, like the picture below. No need for a separate pedal sensor, no need for brake sensors. Attach the controller to the motor. You could add an optional throttle, even a mechanical one to pull the motor down by cable, so very simple installation - 4 clamp bolts to tighten and two battery wires to connect.

There you go Woosh, I offer you the rights to my design. Anyone else will have to pay a licence fee to use it:

 

[Woosh]

that's a clever design.
You still have to show how to make it into a pedelec. CD kits need two clutches.

 

[vfr400]

that's a clever design.
You still have to show how to make it into a pedelec. CD kits need two clutches.

The Cyclone motor already has a clutch and a reduction system in it, so all you need to do is mount it on a plate with a pivot at one end.

 

[Danidl]

As it drives the top chain run, it'll have an idler sprocket as a torque sensor athat will also give the function of wrapping more chain around the drive sprocket.

I think that is exactly right. So it presumably needs a longer chain.