There are two features that I immediately liked about it DYU A1F: its compactness when closed and the presence of two remote controls with which it can not only be switched on remotely, but also completely blocked by activating an anti-theft device.
From the first approach, therefore, it is clear that it is a folding electric bicycle designed for the city and for "hybrid" mobility, comfortable to drive but also to transport by car or public transport, much lighter and more compact than models such as the ADO A16..
Sure, it's not a perfect model and personally I would have changed just a couple of features, but for the amount at which the quality/price ratio is sold (indeed, comfort/price) the compromises it brings with it are more than acceptable: it costs 619 euros but, through the box below, you could buy it at a discount for 599,00 euros.
DYU A1F review: foldable, light, compact electric bike with integrated anti-theft device
Unboxing
The first difference between the DYU A1F and the vast majority of folding electric bikes lies in the fact that the bicycle is delivered already with the wheels mounted. Only the pedals and the seat will have to be fixed, and although it might seem like a small thing, the fact that you don't have to put the tires on is a great thing.
In any case, once the saddle and pedals are fixed, the bicycle will be immediately ready for the first use, although my advice is to make sure that the wheels are inflated to the right pressure, using a pressure gauge.
Datasheet – DYU A1F
- Motor power: 250W (brushless type);
- Full speed: 25 km / h;
- Battery: removable from 36v and 7,5 Ah;
- Tires: 16 inches;
- Three driving mode;
- Front light: LEDs;
- Chassis: aluminum alloy;
- Bike weight: 18Pur kg;
- Weight supported: 120 Kg;
- Disc brake: front / rear;
- Dimensions when open: 129.54 x 104.14 x 53.34 cm.
Design and materials
The design of the DYU A1F it is clearly influenced by its nature as a compact folding electric bike. The frame is in aluminum alloy, it is painted with a color tending towards matt black and the logo is positioned on the central barrel, in a not too invasive way. The battery is integrated in the central tube and the 16” wheels are well connected to the structure of the bicycle itself.
The cable management is good, which avoids as much as possible the tangling of the cables when you go to open and close the structure, and the possibility of adjusting the handlebar in height is excellent as well as that of being able to fold the pedals.
When open it is 1342 x 1050 x 542 mm large while when closed it has a size of 765 x 400 x 660 mm and weighs only 18 kg: it is therefore an extremely comfortable bike to carry by car or on public transport, but also when you don't use it and keep it at home, the small size helps a lot to save space in your home.
The wheelbase of the front and rear wheels is 89.5 cm, while the height between the pedals and the ground is 12 cm, which means that taller people in particular will have to get used to the rather low driving style. And precisely for this reason, I find the cushion that has been integrated into the rear rack rather useless with which yes, the first thing that comes to mind is to occasionally carry another person, but which in reality will be decidedly low and uncomfortable .
The handlebar is of the right size, if compared to the general compactness of the structure, but what didn't convince me much is the total absence of any on-board computer: in addition to the bicycle's ignition button and a switch with which will be able to turn on the front LED light and the rear position light, there is only a small "display" (if we want to call it that) on which you can keep track of the remaining battery charge.
There are no selectors relating to the level of motor assistance, there are no directional arrows. However, there is a rather audible horn and the package comes with two remote controls with which not only can the electrical system be switched on remotely, but a real anti-theft system can be activated which will block the engine and activate a loud acoustic signal if someone tries to move the bicycle when it is parked.
Unfortunately then, given its super compact nature, the DYU A1F it does not integrate any shock absorbing system, however it has a rather comfortable saddle in which the brand has inserted springs created with the aim of cushioning the shocks and vibrations which, given the small wheels, are quite frequent and intrusive.
Then there is an accelerator integrated into the right grip of the bike with which we must be very careful: and not because it is illegal, because we already know this by now, but because the DYU A1F arrives with active zero start. Which means that, once the bike is turned on, the accelerator will activate the electric motor without the need for any pedalling. And if you don't want to get into trouble with the law, my advice is to unplug it.
Engine and brakes
The engine that drives the DYU A1F is a 250w brushless capable of guaranteeing a maximum speed of 25 km/h, slope management up to 15° and a maximum load of 120 kg, even if personally I would always keep under 100 kg. In essence, the there are three ways to use the bike (with the system off, then pedaling, pedal assisted and full electric), but it is not possible to choose the degree of assistance to receive from the motor, which makes pedaling a little complicated in certain situations in in which, perhaps, the absence of a change is greatly felt. In short, it is therefore clear that the DYU A1F was designed for large cities
Even if the battery works at 36v, it manages to feed the engine particularly well which, in turn, guarantees excellent thrust, even uphill and with a rather heavy load.
The double disc braking system, front and rear, is good, which is mechanical but which arrives already well calibrated and able to guarantee correct and safe braking.
The road test
Let's get straight to the point. In terms of driveability DYU A1F He has to contend with the small wheels, low center of gravity and the absence of a gearbox. These are the factors that make it advisable to use it exclusively in the city and it is here that I actually have to make a note that is not exactly "legal": given the absence of the gearbox, it could be a little uncomfortable starting uphill on particularly steep roads and, especially in these cases, the presence of the accelerator is a godsend.
However, once you get used to the driving style of the DYU A1F, one immediately realizes that it is a well-balanced bike, with the right powerful engine, and that all in all it has a frame capable of absorbing vibrations well.
I really like the ergonomics of the frame and saddle and even if the wheels aren't that big, they are still able to absorb shocks well and allow the bike to remain very silent.
Of course, with bikes totally without shock absorbing systems and with small wheels, you will always have to deal with uneven terrain and cobblestones and it is almost obvious to say that the DYU A1F it's much more fun on city asphalt. It must be said, however, that all in all considering its compactness, it does not perform badly even on less regular road surfaces.
Battery life
The battery of the DYU A1F it is a 7.5 Ah at 36v capable of guaranteeing the bicycle a good autonomy, albeit rather distant from what the brand has declared. In full-electric mode for example, despite the brand declaring 30 km of autonomy in my tests I managed to do poco less than twenty, and the same happens in assisted pedaling mode: the company declares 40 km of autonomy, but I managed to exceed poco the 25km.
In short, it is still a good goal, especially considering the many ups and downs that are present in Avellino, but it is certainly not among the electric bikes with the best autonomy on the market.
And being smaller, the battery of the DYU A1F it recharges faster than that of other electric bikes: for a full charge, it may take about 4 hours, using the charger.
Selling price and considerations
The sale price of the DYU A1F it is 619,00 euros but, through the box below, you could take it home with a small discount that would bring the price down to 599,00 euros. The figure is not among the cheapest, it is true, but it is fair when compared to the quality and comfort of this folding electric bicycle.
Of course, as I mentioned at the beginning, it's not perfect, and I would have worked better at least on the on-board computer and on the possibility of modifying the engine assistance levels. Shock absorbers certainly cannot be expected on such a light and compact model, and the presence of the remote control/anti-theft device is a plus which underlines even more how much DYU A1F is a model designed solely and exclusively for the city.
And when he's in town, he does his job very well.
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