12 months
of TrailSurge support
- UK-based fault support
- Battery, motor and frame fully covered.
- Repair, parts or another suitable solution where eligible
Koolux X12 Pro Electric Bike
Motor
250W
Battery
48V 13AH
Speed
25 KM/H
Range
70 KM
€1.330,95
€919,95
Sold out
Finance
Finance options and eligibility confirmed at checkout. Subject to approval.
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Home Delivery Tracked options shown at checkout
Out of stock
- This item is currently unavailable
- Contact us for the latest restock estimate
- We can recommend a suitable in-stock alternative
Click & Collect Collection from our Nuneaton workshop
Collect from our Nuneaton workshop
Collection is available by appointment from our Nuneaton workshop. The preparation time depends on where the product is currently stored. Contact us before ordering for the latest availability, or place your order and we will confirm when it is ready to collect.
Why Buy From TrailSurge? UK showroom, product support & aftercare
Buy your Koolux X12 Pro Electric Bike with UK-based support
TrailSurge is a UK retailer with a showroom and workshop in Nuneaton. Our team can help before you order and continue supporting you after your Koolux X12 Pro Electric Bike arrives.
- UK-based customer support before and after your purchase
- Showroom and workshop in Nuneaton
- Help with product questions, setup, parts and aftercare
- Tracked UK delivery with support if you need help with your order
- Speak to a real member of our team before placing your order
Why buy through TrailSurge?
For the best UK-based support and aftercare, we recommend buying through TrailSurge rather than ordering directly from overseas manufacturers or China-based sellers, where returns, warranty support and parts handling can be more difficult.
Need help with the Koolux X12 Pro Electric Bike?
Ask our team a question before ordering.
Road use notice:
This bike is over 250W and is for private land/off-road use only. Need a UK road-compliant option?
View road legal e-bikes
.
Trail Surge Warranty Plus
FULL OFFICIAL WARRANTY INCLUDED
UK-based support alongside the manufacturer warranty
TRAILSURGE COVER
12 months
More confidence after you buy
TrailSurge Warranty+ gives you a direct UK warranty alongside the product’s manufacturer warranty.
Manufacturer warranty period
See product details
Manufacturer cover
Manufacturing defects within the applicable warranty period.
Typical component protection
Eligible faults affecting the frame and forks, motor and drive system, controller, battery and BMS, charger, wiring, display, gears, brakes and factory-fitted controls.
Description
Powerful 750W brushless rear motor for Confident Riding
The KOOLUX X12PRO features a high-efficiency 750W 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 70–120 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.
Specifications
| Collection | Electric Bikes With Throttle |
|---|---|
| Motor Power | 250W |
| Battery | 48V 13Ah |
| Top Speed | 15.5 MPH |
| Max Range | 43.5 Miles |
| Charging Time | 5-6 Hours |
| Wheel Size | 20 x 4.0" tyres |
| Brakes | Hydraulic Brakes |
| Bike Weight | 35.5 KG |
| Max Climb | 25" |
| Max Rider Weight | 120 KG |
Check your fit
Size & Rider Fit
- Maximum Rider Weight
- 120 KG
What’s Included in the Box?
1 x Koolux X12 Pro Electric Bike
1 x Charger
2X Keys
1 x Tool Kit
1 x User Manual
Frequently Asked Questions
More than an online store.
Discover the TrailSurge difference. Visit our Nuneaton showroom, speak to our UK support team and get expert servicing from our dedicated workshop.
Visit Our Nuneaton Showroom
Explore e-bikes, electric scooters and electric dirt bikes in person. Get expert advice and find your perfect ride.
Real People. Real Support.
Have a question before ordering or need help afterwards? Our UK-based team is here to help with product advice, orders, parts and warranty enquiries.
Expert Repairs & Servicing
Keep your ride performing at its best. Our Nuneaton workshop offers servicing, diagnostics and repairs for bicycles, e-bikes and electric scooters.
Koolux X12 Pro Electric Bike
€919,95
