Folding electric bike 20" with 140 km range – ENGWE O20 Boost

The O20 Boost is the folding e-bike for anyone who rides a lot every day and has no garage. Its 720 Wh battery is among the largest on a 20-inch folder, and 75 Nm of torque gets it moving briskly at traffic lights and on ramps. It weighs 26.5 kg: it folds into a car boot or a corner of the flat, but it isn't meant to be carried in your arms every day. It supports loads of up to 150 kg.

Guide price: €1,199 (VAT included). See the full data in the specifications on this page.

Estimated real-world range

The manufacturer claims up to 140 km, measured with minimum assistance, flat ground and a light rider. In normal use (medium assistance, a 75–85 kg adult, some hills and stops) we estimate between 51 and 72 km per charge, based on 10–14 Wh/km with its 720 Wh battery. With maximum assistance, cold weather or steep climbs, expect the lower end of the range.

Example: for a 10 km commute each way, you would need to charge it roughly every 2–3 working days.

Who is the ENGWE O20 Boost for?

• People short on space: it folds for a car boot, a small storeroom or a corner of the flat.
• Steep ramps and quick starts: 75 Nm of torque gives it good response on climbs.
• Heavier riders or loads: rated up to 150 kg.
• Riders who value braking: hydraulic disc brakes stop with little effort and need less adjustment.

Do you need a licence or number plate?

No. With 250 W rated power and assistance up to 25 km/h, it is treated as a bicycle in the EU: no licence, no registration and it can use cycle lanes. In Spain helmets are compulsory on interurban roads and for under-16s everywhere.

Alternatives worth comparing

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• ENGWE Zip (€1,099, −€100): Very light, compact folding e-bike with a 360 Wh battery and hydraulic brakes. Designed to combine with train …

Need help choosing? Read our buying guide.

Frequently asked questions

What is the real-world range of the ENGWE O20 Boost?

In normal use we estimate between 51 and 72 km per charge; the manufacturer claims up to 140 km in ideal conditions.

Do you need a licence for the ENGWE O20 Boost?

No. It is a 250 W pedal-assist bicycle with assistance up to 25 km/h, so no licence, registration or compulsory insurance is required.

How much does the ENGWE O20 Boost weigh?

26.5 kg, and it folds for storage or transport.

Where can I buy the ENGWE O20 Boost?

NovoDix compares the model and sends you to the official brand store, where the purchase is completed with its warranty and delivery.

More information

Official ENGWE ENGWE O20 Boost electric bike. Specifications are sourced from the manufacturer product page.

Key specifications

• Claimed range (km): 140
• Nominal power (W): 250
• Motor torque (Nm): 75
• Battery capacity (Wh): 720
• Weight (kg): 26.5
• Maximum load (kg): 150
• Foldable: Yes
• Suspension: Front
• Brake type: Hydraulic disc
• Certification and legal use: CE EN15194