If you live in a large town or city, sometimes it’s much easier and quicker using an e-bike or e-scooter for short journey’s. In this article, I’m going to be looking at the DYU D3F which is a mini folding e-bike that’s designed with urban riders in mind.
DYU was founded in 2016 and is part of HongKong DYU Technology Ltd. They specialize in affordable micromobility solutions aimed at urban riders, commuters and students. The DYU range of e-bikes all offer a great, cost-effective alternative to using public transport.
The D3F is one of their best-sellers – it offers a cheap and simple means of getting about. Plus, if you need to do part of your journey on the train or bus, it’s small enough take with you.
For the price, the D3F has everything you need for zipping around town, short commutes or just meeting friends for a coffee. If your commute involves public transport but your stop is a couple of miles from work, then DYU is perfect for ‘last mile’ travel. Saving you valuable time and money on things like taxi’s.
The DYU D3F uses a brushless, geared rear hub motor which produces a nominal 250 watts of power. This means it’s road legal to use in the UK and EU countries. This motor has a peak power output of 550w, giving the rider a useful boost on small hills. Top assisted speed is limited to 15.5 mph (25 km/h) to keep it in line with local e-bike laws.
A 36v 10Ah (360Wh) battery has a claimed range of up to 37 miles in pedal assist. I would say a realistic range for a battery of this size is going to be in the 20-30 mile ballpark.
There’s mechanical disc brakes front and back which should work fine. I’ve ridden the Kugoo B2 which looks identical and those brakes worked surprisingly well.
The DYU D3F is designed to be simple, low-maintenance transport so it only has one gear. I don’t see this being a particular problem as long as very steep hills are avoided. A single speed e-bike like this should still have enough power (with pedalling) to get the rider up moderate hills.
Wheels and tyres
14 inch wheels help keep the size down and aid with portability. The wheels are a one-piece mag design so there’s no need to worry about broken spokes. The 1.95″ wide tyres are designed for tarmac and slightly rough surface like canal towpaths.
It’s a compact e-bike and can be easily taken on public transport without hassle. Folded dimensions are: 1170 x 200 x 720 mm and un-folded 1170 x 500 x 990 mm. Plus, there’s a carrying handle built into the frame.
Considering the bargain price, the D3F comes very well equipped. There’s front and rear mudguards, lights and even a kickstand.
The DYU D3F has an IP54 rating, meaning it can be ridden in light rain and will be resistant to dust particles. It shouldn’t be ridden in heavy rain and through deep puddles.
If you’re looking for a simple and affordable solution to getting around town, but don’t fancy an e-scooter. The DYU D3F is well worth considering. It looks well made, is easy to transport and doesn’t weigh too much at 17 kg. The battery should provide a range of 20-30 miles with pedalling. Plus, if you do run out of juice, the DYU can still be pedalled as normal (something you couldn’t do on an e-scooter).
- Compact and easy to transport
- Reasonably lightweight
- Decent battery range
- Plenty of power for city riding
- Legal in the EU and UK
- Good value for money
- Will not be suitable for very tall riders
- One gear will limit hill climbing ability