And nothing is more associated with reduced weight in the cycling world than good old carbon fiber.
Thats the approachFuroSystems Furo Xtakes as one of relatively few carbon fiber folding ebikes on the market.
There are also a few flaws that prevent it from being an unqualified recommendation.

Featherweight carbon
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Its about the subtler things you dont see on a spec sheet.
Is the bike going to be easy to carry into a subway?

Is there an easy way to lock up the bike?
Is the assistance smooth or jerky?
The Furo performs well at most of these.

For the most part, the Furo X feels well thought out.
A clever, quirky design
The bike has a few unique design quirks.
I dig the design, although Id prefer more minimalist branding from Furo.

Having CARBON written in bold letters is quite unnecessary.
My impressions of the ride quality were positive.
For one, the bike seemed to absorb bumps significantly better than Im used to from folding bikes.

It would be really easy to do a wheelie if I could do a wheelie.
I tend to gravitate towards ebikes that dont have absurd amounts of power.
The latter almost always feels more responsive, intuitive, and natural than a cadence sensor.

My other big pet peeve: the lights on the Furo X are awful.
Honestly, the worst Ive seen out of a dozen or so ebikes tested recently.
On a more positive note, range is surprisingly solid for just a 378 Wh battery.
Just get yourself some new lights.