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ENGWE L20 3.0 Boost City Electric Bike
Shop the ENGWE L20 3.0 Boost city electric bike with fat tyres, folding frame and up to 120 km range for smooth everyday rides and weekend use.

SPEED15.5 Mph
RANGE84 Miles
MOTOR250 W
BATTERY13.5 Ah
See full UK Road Legal.
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Product Overview
The ENGWE L20 3.0 Boost City Electric Bike is a practical folding e-bike built for everyday riding and relaxed mixed-terrain use. Its 6061 aluminum alloy step-through frame, 20 x 4.0 in fat tyres and torque sensor hub motor make it a strong choice for riders who want comfort, stability and easy access.

With a 48V 13.5Ah lithium-ion battery, 75 Nm torque and Shimano Tourney 7-speed transmission, it is designed for smooth city journeys and confident cruising beyond paved streets. Hydraulic dual-piston brakes and advanced vibration absorption help keep the ride controlled and comfortable.

Key Features
Here are some of the standout features of the ENGWE L20 3.0 Boost 250W 20″ Fat Tyre City E-Bike:
- Folding design for easier storage and transport
- 20 x 4.0 in fat tyres for added grip, comfort and stability
- 48V hub motor with torque sensor for responsive pedal assistance
- 75 Nm torque for strong support on everyday rides
- 48V 13.5Ah lithium-ion battery with up to 120 km range at PAS 1
- Shimano Tourney 7-speed transmission for flexible riding across different routes
- Hydraulic dual-piston brakes with 180 mm rotors for confident stopping
- 3.5” color LCD with Bluetooth for clear ride information
What to Expect
This bike offers a steady, comfortable ride with practical power for commuting, leisure trips and light trail use. With a max speed of 25 km/h, a charging time of about 6.5 h and a range that varies by assist level, it is well suited to regular day-to-day riding.
What’s Included
- Electric bike
- Battery
- Charger
- User manual
Assembly & Setup
Assembly and setup are straightforward, with the main components designed for practical everyday use. Once charged, the display and controls make it easy to get ready for your first ride.
Support After Purchase
After your purchase, you can expect ongoing support for getting started and understanding the bike’s key functions, helping you ride with confidence from day one.

Technical Specifications
| Model Options | BK / CH |
| Frame Material | 6061 aluminum alloy step-through frame |
| Motor | 48V hub motor with torque sensor |
| Torque | 75 Nm |
| Tyres | 20 x 4.0 in |
| Battery | 48V 13.5Ah lithium-ion |
| Max Speed | 25 km/h |
| Range | 120 km (PAS 1); 100 km (PAS 3); 85 km (PAS 5) |
| Charging Time | About 6.5 h |
| Brakes | Hydraulic dual-piston (180 mm rotors) |
| Transmission | Shimano Tourney 7-speed |
| Display | 3.5” color LCD with Bluetooth |
| Bike Weight | 33.2 kg |
Road Legal (EAPC)
These bikes are built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning they can be used on public roads and cycle paths without registration, tax, or a licence. Motor assistance is limited to 250W and cuts off at 15.5 mph (25 km/h). You can read the official requirements on the UK government website.
Configurable Models
Some bikes are supplied in a restricted, road-legal setup but are capable of higher performance. If modified or used beyond EAPC limits, they may no longer qualify as road legal and could be classified as motor vehicles under UK law. This may require registration, insurance, and a driving licence. For full guidance, please refer to the official UK e-bike rules.
Private Use Only
Certain high-performance models are intended strictly for private land use with the landowner’s permission. These bikes do not meet EAPC standards and cannot be used on public roads, cycle paths, or pavements unless fully registered and insured in accordance with UK law.
If you're unsure which option is right for you, our team is here to help. Feel free to contact us before purchasing for clear guidance and peace of mind.
Fast UK Delivery
We offer fast and reliable delivery across the UK, with most bikes dispatched within 24–72 hours and usually arriving in 3–7 working days. Every order is shipped with trusted couriers and includes tracking, as explained in our payment and shipping page, so you can follow your delivery from dispatch to arrival.
Shipping Information
Standard UK shipping is free on most bikes. Orders placed after 12 PM may ship the next working day, and some remote areas may have extra delivery charges. If a delivery is missed or returned after failed attempts, additional shipping fees may apply, as detailed in our shipping policy.
14-Day Returns
You can return your bike within 14 days of delivery as long as it is unused, in its original condition, and includes all accessories, manuals, and packaging. Please contact us first before sending anything back, following the steps outlined in our returns and refunds policy.
Refund Policy
Once your returned bike is received and inspected, approved refunds are issued to your original payment method within 2–5 business days. If the item arrives faulty, damaged, or incorrect, we cover return shipping and provide a full refund, as explained in our refund guidelines.
Customer Reviews
See why riders choose BikTron for value, delivery speed, and after-sales support.
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