Consumer Electronics, Gadgets & Accessories

Foldable, electric and not even that expensive: The Fiido D4S e-bike

Chinese scrap? No way! The D4S e-bike is not the first electric folding bike from the young Chinese manufacturer Fiido. A certain competence in this field can therefore be attributed to it. Especially since the bike surprised us positively at one point or another.

Decisive factors for us were the motor’s runtime, the assembly effort until it is ready for use, and the stability. Equipment and design, on the other hand, are temporarily important in this case – we’re not in a beauty contest here.

But we don’t want to dwell on the preliminaries, we’ll get straight into the review. On your marks, get set, go!

Technical data

Motor 250 watts
Voltage 36 volt battery (10.4 Ah)
Charge time 7 hours
Maximum distance on one charge Circa 80 kilometers
Maximum speed 25 km/h
Maximum load 120 kilogram
Frame material Aluminum alloy
Gears 6 (Shimano shifting)
Total weight with battery 17.5 kg
Size (unfolded) 150 x 26 x 108 cm
Size (folded) 85 x 45 x 64 cm
Diameter tires 20 inches (50.8 cm)
Available colors Black (test bike), White
Price 633.99 euros (directly from the manufacturer)

Packaging & Contents: More than just a bike in a box

In addition to the bike frame, a whole lot of accessories are included. On the one hand, of course, the charging cable including adapter (if you should ever be on the road in the UK) can not be missing. On the other hand, the pedals, a reflector for the rear, a screwdriver, a wrench, several Allen keys and the mudguards are included separately.

Without further ado, you get a small bicycle workshop kit included. With this, you can attach or properly align all components before the first ride. Afterwards, you no longer need any of the tools, because everything can be operated manually, which holds the Fiido D4S in unfolded mode. This also makes folding and unfolding the e-bike extremely effective; but more on that later.

In general, the initial set-up after unpacking also went off without a hitch. Unfolded, handlebar height fixed, pedals mounted with the wrench and with the help of the Phillips screwdriver we finally still attached the reflector in the back.

Which – admittedly – looks a bit dated on the modern e-bike. After all, the glory days of reflectors are long gone and at most are still used on school satchels. This fact raises the question for us: What was missing in Fiido’s design department to make the decision to add an electric rear light to the back of an ELECTRIC bike? And if it is also only separately battery-operated. Finally one finds such a front light with the Bike. And in Germany, a rear light is also mandatory.

Attaching the mudguards was a bit more work. While you can still simply screw it on at the front, you first have to remove the rear wheel at the back to insert the mudguard properly. It’s a shame Fiido doesn’t do that already. But since, as with almost all bikes, you still have to align the wheels anyway so that the brake doesn’t rub, this wasn’t much of a problem.

Apart from this shortcoming, we are convinced by the delivery, range of accessories and assembly up to this point. Let’s get down to business and take a first bike ride with the Fiido D4S e-bike.

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Fiido D4S E-Bike (-$20 Coupon "basictutorials") price comparison


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Simon Lüthje

I am co-founder of this blog and am very interested in everything that has to do with technology, but I also like to play games. I was born in Hamburg, but now I live in Bad Segeberg.

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Chinese scrap? No way! The D4S e-bike is not the first electric folding bike from the young Chinese manufacturer Fiido. A certain competence in this field can therefore be attributed to it. Especially since the bike surprised us positively at one point or another. Decisive factors for us were the motor’s runtime, the assembly effort … (Weiterlesen...)

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