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Koolux X9 Mini Electric Bike
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TrailSurge is a UK company and VAT registered too: Company No. 16935369 · VAT No. 521226239.
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Trail Surge Ltd · Unit 62, Centenary Business Centre, Nuneaton, CV11 6RY
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TrailSurge Warranty+
1 year of cover UK support
Worth £159 Included
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What’s covered
Frame, forks, motor, controller, battery, charger and factory-fitted electrical and mechanical parts.
Cover & exclusions
Normal wear, accidental damage, misuse and unauthorised modifications are generally excluded.
How to claim
Contact our UK team with your order number and a few photos.
Manufacturer warranty · Koolux
Manufacturer warranty period · 12 months against manufacturing defects.
Manufacturer cover · Confirmed production faults affecting the original frame and factory-installed electrical or mechanical components.
Separate manufacturer terms apply. Warranty periods are not added together.
From our Nuneaton showroom
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Description
Powerful 500W brushless rear motor for Confident Riding
The KOOLUX X9 MINI features a high-efficiency 500W brushless rear motor, delivering smooth acceleration and reliable torque for hills, city riding, and mixed terrain.
Long-Range Lithium-ion battery for Everyday Adventures
Designed to go the distance, the battery system provides a real-world range of up to 60–80 km depending on riding mode, terrain, and rider weight.
Comfort-Focused Design for Stability and Control
Wide tyres and a well-balanced frame help absorb road vibrations and uneven surfaces, keeping rides comfortable and confidence-inspiring.
Smart Display and Assist System
Ride with full control using a clear digital display showing speed, battery level, and distance. Multiple pedal-assist levels help tailor power delivery to your riding style.
Road-Legal Configuration
Supplied in a 25 km/h (road legal setting) configuration for UK compliance. Always follow local e-bike regulations.
This is a performance-focused electric bike for appropriate private-land riding. Beyond the headline motor output, the most useful things to consider are rider fit, how the bike handles on your intended terrain and how its braking and suspension equipment suits your experience.
Specifications
| Collection | Electric Bikes |
|---|---|
| Motor Power | 500W |
| Top Speed | 20 MPH |
| Max Range | 37-50 Miles |
| Wheel Size | 16*4.0 inch |
Size & Rider Fit
Check rider measurements and sizing before you order.
More measurements & dimensions
- Deck size
- Not applicable — bicycle frame
- Built dimensions
- 135 × 63.5 × 106 cm (L × W × H)
Fit guidance: Compact mini e-bike; published rider-height geometry is unavailable, so contact us for a fit check.
Sizes are a guide. Rider proportions, footwear and setup can affect fit.
What’s Included in the Box?
1 x Koolux X9 Mini Electric Bike
1 x Charger
2 x Keys
1 x Tool Kit
1 x User Manual
Assembly Information
Assembly Video
Watch the assembly guide below before first setup.
Spare Parts for This Model
We stock a range of spare parts in the UK and can source additional components for this model. Contact our team to check prices, compatibility and availability.
Frequently Asked Questions
Koolux X9 vs Similar Models
| At a glance | ||
|---|---|---|
| Price |
£529.99
|
£599.00
|
| Max range |
37-50 Miles
|
31 Miles
|
| Top speed |
20 MPH
|
15.5 MPH
|
| Battery |
Not listed
|
48V 10.4AH
|
| Motor |
500W
|
250W
|
| Tyre size |
16*4.0 inch
|
20inch x 4.0 Fat Tyre
|
| Brakes |
Not listed
|
Dual Mechanical Disc Brakes
|
| Charging time |
Not listed
|
6+ Hours
|
