ECONO Mare EEC4 CITY Electric Bicycle
A premium city-trekking electric bicycle with a powerful mid-drive motor for an exceptionally natural riding feel and complete comfort.

Who is the ECONO Mare CITY electric bicycle most suitable for?
The ECONO Mare CITY is designed for those who want to transform daily commutes and city errands into a relaxing experience, without sacrificing top-tier technology. Thanks to its open "Low-step" frame, mounting and dismounting are completely unhindered, making it ideal for riding in city centers with frequent stops.
With an upright posture to prevent back pain and smooth-rolling 28-inch wheels, this bicycle is the ultimate choice for riders who prioritize comfort, reliability, and a natural pedaling feel, while also keeping the door open for occasional excursions on well-maintained gravel paths.

What are the differences between the Apes and Mare series, and the CITY and SUV variants?
Understanding the ECONO offering is simple when considering the motor architecture and equipment purpose:
Apes Series vs. Mare Series (Rear vs. Mid-drive Motor): Apes models use a rear hub motor, which is excellent for flats and undemanding riding. The Mare series, however, represents a technological leap – it uses a mid-drive motor, positioned in the bottom bracket. This ensures an incomparably better bike center of gravity, an exceptionally natural power delivery feel, and significantly higher torque (a whopping 80 to 90 Nm compared to 45–50 Nm for the Apes series). Mare is therefore the superior choice for hill climbing.
Mare CITY vs. Mare SUV (Purpose):
• Mare CITY: Equipped with a Bafang M210 motor (80 Nm), 9-speed gears, smooth tires (Schwalbe Energizer), and geometry that allows for a perfectly upright posture. It is primarily made for paved surfaces.
• Mare SUV: This is a true off-roader. It is equipped with a more powerful Bafang M410 motor (90 Nm), a massive 11-speed gearbox with a huge gear range (11-50T), aggressive 29" mountain tires (Schwalbe Smart Sam), larger rear brake discs (180 mm), and a more sporty riding posture.

Bafang M210 Mid-drive Motor – The Heart of Your Bike
The Mare CITY model is powered by an exceptionally quiet and refined Bafang M210 mid-drive motor (36 V voltage, 250 W power). The bike provides assistance up to the legally permitted 25 km/h (limited).
The biggest advantage of this motor is its astonishing 80 Nm of torque and integrated sensor technology that delivers power with extreme precision and smoothness. The system operates so continuously that you feel like you have bionic legs – no hill in the city or countryside will ever be an obstacle again.

Replaceable Comtron Battery for Carefree Kilometers
Energy is provided by high-quality Comtron ELK smart batteries, designed and assembled locally. The series offers complete flexibility, as the batteries are interchangeable.
You can choose between three impressive capacities: 520 Wh (15 Ah), 700 Wh (20 Ah), and 800 Wh (23 Ah). The battery is discreetly integrated into the frame, can be locked with a key, and quickly removed. A 2A standard charger is included, with the option to upgrade to a 4A fast charger.

Compact Display and Intelligent Diagnostics
All travel data is monitored via the Bafang DP C080 color LCD display, conveniently located next to the left grip, so you don't have to release the handlebars when changing assistance levels. You can choose from as many as five assistance levels (ECO, TOUR, SPORT, SPORT+, BOOST), or switch the system to "0" – the motor then creates no resistance and the bike behaves like a regular bicycle.
The system supports Bluetooth connectivity, meaning you can view technical details and adjust certain riding profiles via the Bafang Go App on your phone.

Premium Comfort: Suspension and Schwalbe Tires
To prevent hand fatigue from contact with cobblestones and sidewalks, the front of the bike rests on SR Suntour NEX-E25 Coil 28'' suspension forks, which have proven excellent at dampening urban irregularities.
The bike is adorned with premium Schwalbe ENERGIZER ACTIVE PLUS (28x2.0 / 50-622) tires. This model offers exceptionally low rolling resistance (HS427 ENC profile) and is simultaneously "armored" with PunctureGuard (50 EPI) technology and TwinSkin puncture protection. All of this on durable laced REVO D rims with reinforced 14G spokes (32 holes).

Hydraulic Brakes and 9-Speed Shimano Drivetrain
Safety must always be a priority, especially on heavier electric bicycles. Tektro HD-M280 2-piston hydraulic disc brakes are responsible for safe stopping. A 180 mm brake rotor is located at the front for maximum power, and a 160 mm rotor at the rear.
Gears are provided by the proven Shimano system. The Shimano Altus RD-M2000 SGS 9-speed rear derailleur combined with a Shimano Acera CS-HG201 (11-36T) cassette and a strong Shimano CN-HG53 e-bike chain ensures fast and buttery-smooth gear changes.

Premium Urban Equipment and Ergonomics
The Mare CITY model excels in ergonomic perfection. The cockpit with an adjustable stem (ECONO SUV ST286-90B, R:35°, E:90), comfortable handlebars (Width: 680 mm, Sweep: 37°), ergonomic Velo VLG-1505 grips, and comfortable Velo VL-6574 saddle ensures pain-free cycling even after several hours in the saddle.
The bike is fundamentally equipped for all weather conditions. It features wide PVC mudguards, a sturdy rear rack (ECONO 29’’ Boost with MIK "Click and go" system), a bell, a robust kickstand (40mm mounting), and a high-luminosity front Satelite C19 LED light (DC 8V-58V) and rear ECONO WD216 light.
What do you receive upon purchase?
- ECONO Mare CITY electric bicycle.
- Smart replaceable Comtron ELK smart battery (selected capacity 520 Wh, 700 Wh, or 800 Wh) and keys.
- Original Comtron 2A wall charger (for the 520 Wh version) or Comtron 4A fast charger (for the 700 Wh and 800 Wh versions).
- All standard accessories: direct-mount kickstand, MIK rack, mudguards, front/rear LED light, and bell.
- User manual for the bike and Bafang DP C080 display (in Slovenian and English).
- Warranty: Extended 36-month warranty on the frame, 24-month warranty on the motor, battery, and display, and 12-month warranty on other non-consumable components (brake pads and tires are consumables).
- Reliable service and support at Tržaška cesta 222, 1000 Ljubljana.
Technical Specifications
| Manufacturer | ECONO |
| Model | Mare CITY |
| Model Year | 2026 |
| Frame | ECOON Mare M410 28-6061-EE-GEN.1.3 (Low-step, S/M and L) |
| Motor | Bafang M210, Mid-drive Motor (Central/Mid-drive) |
| Motor Power and Voltage | 250 W / 36 V |
| Maximum Torque | 80 Nm |
| Speed Limit | Up to 25 km/h (limited) |
| Battery | Comtron ELK smart (replaceable) |
| Battery Capacities (choice) | 520 Wh (15 Ah) / 700 Wh (20 Ah) / 800 Wh (23 Ah) |
| Charger | Comtron 2A (for 520 Wh version) or Comtron 4A fast charger (for 700 Wh and 800 Wh versions). |
| Display | Bafang DP C080 (Color LCD), Type-C input (5V, 500mA) |
| Connectivity | Bluetooth (Bafang Go App support) |
| Wheel Size | 28 inches (28" / 700c) |
| Front Suspension | SR Suntour NEX-E25 Coil 28'' |
| Brake System | Tektro HD-M280 (2-piston hydraulic disc brakes) |
| Brake Rotors | 180 mm (front) / 160 mm (rear) |
| Number of Gears | 1 x 9 gears |
| Rear Derailleur | Shimano Altus RD-M2000 SGS 9-speed |
| Shifter | Shimano Altus SL-M2010 9-speed |
| Cassette | Shimano Acera CS-HG201 9s (11-36T) |
| Chain | Shimano CN-HG53 9s (118 links) |
| Crankset | Bafang, length 165 mm (L+D) |
| Rims and Hub | REVO D 622x25C (W: 25 mm, H: 19 mm) / 14G / 32H / 6-bolt disc |
| Tires | Schwalbe ENERGIZER ACTIVE PLUS 28x2.0 (50-622) HS427 ENC, 50EPI PunctureGuard, TwinSkin |
| Headset | Neco H322MP-156SB with integrated cables, 130° rotation block |
| Stem | ECONO SUV ST286-90B (Angle: 35°, Length: 90 mm) |
| Handlebar | ECONO CITY BB: 31.8 mm, Width: 680 mm, Bend: 37°, Rise: 35 mm |
| Grips | Velo VLG-1505 (Ergonomic) |
| Saddle | Velo VL-6574 |
| Seatpost | ZOOM SP-C208 30.9 mm (black), clamp 34.9 mm |
| Front Light | Satelite C19 DC 8V-58V (handlebar mount) |
| Rear Light | ECONO WD216 DC 6-48V |
| Rack and Mudguards | ECONO 29’’ Boost MIK (matte black) / PVC mudguards FDPVC29-70 |
| Load Capacity | 125 kg (rider + bike + equipment) |
| Bike Weight | 23.6 kg (without battery) |
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