An elegant solution indeed, with many knobs-on included.
Sadly, the smallest wheel they can do, for now, is for the Bromelton folder, at 16".
I have a pigeon pair of Bickertons, the precursor to all folders, and still the lightest at 10kg, but . . .
They have a 16" wheel, but only at the rear.
The front is just 14", which explains the tiny folded size.
With this kit added, the extra 3kg would have given me eFolders with a weight still less than most other folders are, bare.
But; no 14" avail, and the rear wheel kit is too wide for the all aluminium Bickies.
Back to healthy pedalling then, I guess.
That’s OK. At near 80, a 10kg bike suits me just fine.

I would be very wary of anything offered via Indiegogo. I had a supposed palm size computer that was to be released that never happened and I had pre paid for it along with many other people. Crooks ran off with over 700K and Indiegogo was a complete waste in doing a damn thing about it.

No throttle, no sale.

Mike Vidal: I agree, I lost over $400. on a 3D headphone that had samples, but the guy wasted the money and it never came to be manufactured.

How about regenerative braking, or pedal charging while going downhill or on level ground?

Funny how they cut the EggRider logo from the EggRider V2 display... such a shame, you should give them some credits...

What about "Motor OFF when Braking" ?? I see no mention of that critical feature ...

Indigogo, huh? $500+, huh? No thanks; I'll just get on Amazon, chose one of the umpteen kits already on there, get a hub-mounted motor for the rear tire instead of the front, complete with twist grip or thumb throttle, look up a battery pack, and end up having spent less than $400 with free delivery. Why do these articles always pimp some way-too-expensive vaporware?

They should offer a kit without spokes, rim and wheel so the buyer can have their favorite bike shop lace it to their existing rim.

Does anyone else (apart from me!) remember the SInclair electric bike attachment? It clipped onto the rear wheel under the saddle, and a small wheel pressed against the tyre. Voila!