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KOOLUX X11 Folding Electric Bike
Shop the KOOLUX X11 folding electric bike with fat tyres, dual batteries and hydraulic brakes for stable city rides and longer mixed-terrain journeys.

SPEED15.5 Mph
RANGE93 Miles
MOTOR250 W
BATTERY23.4 Ah
See full UK Road Legal.
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Product Overview
The KOOLUX X11 Folding Electric Bike is a practical 250W e-bike built for riders who want a compact design with strong day-to-day usability. With its folding frame, fat tyres and dual-battery setup, it suits commuting, leisure rides and longer mixed-terrain journeys.

Its 20×4.0 inch tyres help improve balance and stability across city streets and rougher paths, while front fork suspension adds comfort on uneven surfaces. Shimano 7-speed gearing and hydraulic brakes give you the versatility and control needed for a more confident ride.

Key Features
Here are some of the standout features of the KOOLUX X11 250W 20″ Fat Tyre Folding E-Bike:
- 250W motor with a standard speed of 25 km/h
- Dual 48V 13+10.4Ah lithium ion batteries for extended riding range
- 80–150 km range for longer journeys and regular use
- 20×4.0 inch fat tyres for added grip, balance and stability
- Folding design for easier storage and transport
- Hydraulic brakes for controlled stopping power
- Front fork suspension for improved comfort on uneven ground
- Shimano 7-speed gearing for flexible riding across different routes
What to Expect
The KOOLUX X11 is designed to deliver steady assisted riding with practical range and stable handling. It is well suited to everyday travel, leisure use and mixed-terrain riding, with a load capacity of 120 kg and charging time of 6.5–7 hours.

What’s Included
- Electric bike
- Battery
- Charger
- User manual
Assembly & Setup
Once delivered, the bike will need basic setup before your first ride. Charge the battery fully, check key components and make any necessary adjustments for a safe and comfortable fit.
Support After Purchase
After your purchase, you can refer to the user manual for setup and everyday operation. Keeping the battery charged and checking core components regularly will help you get the best from your KOOLUX X11.
Technical Specifications
| Battery Capacity | 48V 13+10.4Ah |
| Battery Type | Lithium Ion Power Battery |
| Charger | 54.6V 2.0A |
| Charging Time | 6.5–7 hours |
| Range | 80–150 km |
| Bike Weight | 36.4 kg |
| Speed | Standard 25 km/h |
| Load Capacity | 120 kg |
| Waterproof Level | IP54 |
| Tyres | 20×4.0 inch |
| Frame | Iron |
| Brakes | Hydraulic Brakes |
| Suspension | Front Fork Suspension |
| Gearing | Shimano 7 Speed |
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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