ENGWE O20 Boost Folding Electric Bike
Key specifications
- Rated motor
- 250W hub motor
- Battery
- 48V 15Ah (720Wh)
- Assist limit
- 25 km/h (15.5 mph)
- Range
- Up to 140 km (87 miles)
- Tyres
- 20 × 2.125-inch
- Brakes
- Hydraulic discs
Step-through comfort with compact storage
The ENGWE O20 Boost combines a low step-through frame with 20-inch urban tyres and a folding design for storage between rides. A torque sensor controls its 250W hub motor, while the Boost function provides up to 75 Nm for extra support when pedalling uphill.
Its removable 720Wh LG-cell battery pairs with a 4A charger, while Shimano Altus eight-speed gearing lets you adjust your pedalling to the route. A 50mm suspension fork, hydraulic disc brakes, lights, mudguards and a rear rack provide a practical setup for daily journeys.
Key features
- Pedal-operated Boost: Hold the Boost button while pedalling for a short burst of extra assistance, with up to 75 Nm of torque.
- Comfort on uneven roads: The hydraulic front fork provides 50mm of travel and an adjustable lockout, alongside 20 × 2.125-inch urban hybrid tyres.
- Flexible gearing and braking: Shimano Altus eight-speed gearing supports varied routes, with dual-piston hydraulic brakes and 160mm rotors front and rear.
- Useful everyday fittings: Front and rear mudguards, lights, a centre kickstand and a rear rack are included. The rack supports up to 15 kg.
Technical Specifications
| Motor | 250W hub motor, 48V, with Boost function |
|---|---|
| Maximum torque | 75 Nm with Boost |
| Assistance | Torque sensor; five pedal-assist levels |
| Assisted speed limit | 15.5 mph / 25 km/h |
| Battery | Removable 48V 15Ah / 720Wh lithium-ion battery; LG 21700 cells and BMS |
| Manufacturer range figures | Up to 140 km at PAS 1 |
| Charging | 54.6V 4A charger; approximately 4 hours |
| Frame | 6061 aluminium alloy; folding step-through design |
| Front suspension | Hydraulic fork with adjustable lockout and 50mm travel |
| Gearing | Shimano Altus eight-speed RD-M310 derailleur; 13–28T cassette and 48T chainring |
| Tyres | 20 × 2.125-inch urban hybrid tyres with puncture protection |
| Brakes | Dual-piston hydraulic disc brakes; 160mm front and rear rotors |
| Display | 3.5-inch colour LCD with Bluetooth and ENGWE app support |
| Lighting | Integrated 40-lux front light and rear light; manufacturer lists K-Mark certification |
| Pedals and stem | Folding pedals and folding stem |
| Bike weight | Approximately 26.5 kg |
| Maximum load | 150 kg; rear rack limit 15 kg within the overall load allowance |
| Recommended rider height | 155–190cm; saddle height approximately 82–100cm |
| Folded dimensions | Approximately 88(L) × 52.5(W) × 85(H)cm |
| Everyday equipment | Front and rear mudguards, rear rack, centre kickstand and tracking tag included |
| Colour options | Black; Blue; Purple |
Frequently Asked Questions
How does the Boost function work?
Press and hold the Boost button while pedalling for a short burst of extra assistance, with up to 75 Nm of torque. Boost stops when you stop pedalling.
How long does charging take?
A full charge takes approximately four hours with the supplied 4A charger. The removable battery can be charged on or off the bike.
How much space does it need when folded?
It folds to approximately 88 × 52.5 × 85 cm and weighs around 26.5 kg. Allow enough room to store and lift it comfortably.
Are mudguards and a rear rack included?
Yes. Front and rear mudguards, a rear rack and a centre kickstand are included. The rear rack is rated for up to 15 kg, within the bike's total load limit.
What rider height is recommended?
The recommended rider height is 155–190 cm, with saddle-height adjustment from approximately 82–100 cm. Check the riding position and standover clearance for a comfortable fit.
Delivery, returns and support
UK-wide delivery with specialist product guidance and after-sales support from Electric Scooters London.
Explore our electric bike range or view our repairs and servicing.
Before ordering: Delivery information, returns & refunds, and warranty & support.
