(Advertisement) First impression and workmanship! When unpacking it becomes immediately apparent that Grundig has invested its limited budget wisely.
The E20 comes fully pre-assembled; simply unfold the handlebars, close the quick-release skewers, and adjust the saddle – and the bike is ready to ride.
Grundig E20
The foldable aluminum frame looks sturdy, the visible welds are reminiscent of handcrafted craftsmanship rather than high gloss, yet nothing creaks or wobbles. around 20 kg The bike remains portable without being delicate. Particularly convenient: The folding closure engages with a solid locking lever – less elegant, but maximum reliability.
Structure and folding mechanism
The heart of the concept is, of course, the folding frame. With a simple flick of the wrist, the bike pivots almost 180° in the middle, so that the handlebars and rear wheel are parallel to the front wheel. It only becomes completely stable when you fully extend the seat post—then it rests on two tires and the seat tube.
However, one thing is clear: The E20 isn't designed for sprinting across the platform to the train. It's simply too heavy. However, it fits under a desk, in a storage closet, or in almost any trunk. Commuters with little storage space clearly benefit here.
drive and handling
Vinka’s compact rear hub motor contains a whopping 30 Nm Torque. That sounds moderate on paper, but it's easily enough for quick starts from traffic lights in the city and, in our case, even for good propulsion in the mountains.
It is controlled in five support levels, all of which 25 km/h help. Even level 1 provides noticeable acceleration without loss of control; from level 3 onward, the e-bike pulls almost on its own. The mandatory pedal sensor works more sensitively than on many cheap folding bikes: When accelerating again after a curve, the assistance kicks in gently, and on climbs, the motor persistently maintains the pressure even when your cadence drops.
The lag when you stop pedaling takes some getting used to, but it maintains momentum on inclines. However, under full load, the drive system with a distinct whirring sound – quiet is different, but it is not annoyingly loud either.
equipment and range
Shimano supplies the 7-speed Tourney transmission with twist grip, Tektro provides mechanical disc brakes. Neither is high-end, but robust and maintainable anywhereThe narrow 20-inch CST city tires roll lightly, even have reflective stripes, and save weight. However, comfort is somewhat compromised, which is more noticeable on cobblestones than on asphalt.
Metal mudguards, a luggage rack with a capacity of up to 20 kg, and a sturdy kickstand are included. The lighting—bolted to the rear and clip-on to the front—is battery-operated and does not require an e-bike power supply. A removable battery is located in the down tube. 252Wh battery.
Under ideal conditions, it can reach 50 km; however, realistically, it's more like 30-40 km before the included 2 A charger needs about four hours to recharge. In our test, the 40 km were even "in the mountains", which is great. For city commuters, however, the battery is easily enough for two or three working days. Anyone wanting more range will have to upgrade to a higher price range; for € 749 In our opinion, the package is fairly put together.
Price-performance check
There are plenty of folding bikes under €1.000, but they often seem thrown together: inferior shifters, vibrating mudguards, unstable folding joints. Grundig refutes the clichéThe components are all from brand manufacturers, fit together harmoniously, and are easy to obtain in the event of service.
The CE seal It also eliminates legal uncertainties that many exotic imports leave open. Sure: A 500 Wh battery, hydraulic brakes, or a torque sensor would enhance the driving experience – but the price would then exceed €1.500. For city routes, camping holidays, or the commute, the E20 delivers exactly what it promises: a reliable, uncomplicated mobility solution.
Conclusion
Who one honest, affordable e-folding bike If you're looking for a bike that's as good as it gets, the Grundig E20 is a strong candidate. The build quality, ride quality, and everyday usability are all top-notch, and any weaknesses are limited and easily overlooked given the price. This bike doesn't reinvent the wheel—nor does it need to.
It shows that well-thought-out design and solid technology are possible even in the budget segment. Anyone who frequently maneuvers their bike on the train, in the office, or at home and rarely rides more than 40 km at a time will enjoy the E20.
Optional GRUNDIG Tracker:
The GRUNDIG Tracker disappears into the bell, bottle holder or reflector and uses the “Where is?” network from Apple to show your bike on the map without revealing its identity. Instead of GPS, it uses the wireless network of countless iPhones, providing a surprisingly accurate location – with no monthly fees.
Unobtrusive installation
Because the housing fits perfectly into the bike components, it remains hidden even from experienced thieves. A reflector simply doesn't look like a tracker to anyone—that's precisely what makes it so appealing.
Long-lasting battery
The interchangeable 210 mAh lithium battery keeps around 6 months Then you simply swap it out like a button cell, don't charge anything, and still remain seamlessly trackable.
Easy setup via iPhone
Press the tracker, take out your iPhone, in the “Objects” app, tap “Other supported object” Tap – done. If you can't find your bike, you can make the tracker beep via remote call and follow the sound.
Privacy & Weather Resistance
Location and history data are End-to-end encrypted – only you can see where your bike is. Furthermore, the housing IP65 certified, so dustproof and protected against heavy rain.
