Is the Koolux X14 easy to assemble?

The Koolux X14 comes mostly assembled and only minor things need to be assembled. This should not take longer than 20-30 minutes to do.

Is the Koolux X14 waterproof?

The Koolux X14 is water-resistant and suitable for riding in light to moderate rain. It is not fully waterproof and should not be submerged. Short term, your product can get a little wet and be in the rain, but any long-term exposure can cause serious problems.

How long does delivery take?

Delivery for the Koolux X14 will take on average 3-5 bays to arrive to you Free Delivery on all orders. Tracking information is provided upon dispatch.

What is your return policy?

We offer a 30-day return policy on the Koolux X14 for unused items in their original packaging. Full details are available on our Returns page.

Do you provide a warranty?

We are confident in the quality of E-Bikes and E-Scooters we offer here at Trail Surge. All Products come with a minimum 12 Month Manufacture Guarantee/Warranty for main components.

Koolux X15 Electric Bike 48V 15Ah Koolux

Black electric bike with blue accents on a white background

Koolux X15 Electric Bike

Name: Koolux X15 Electric Bike
Brand: Koolux
Price: 67395 GBP
Availability: OutOfStock
Rating: 4.33 (3 reviews)

Motor

500W

Battery

48V 15AH

Speed

25 KM/H

Range

50 KM

€848,95 €673,95

Sold out

Pay in 3 €224,65×3

Pay monthly €56,16/mo

Free EU Delivery

Out of stock — contact us for restock ETA

1-Year Warranty

Manufacturer-backed cover

EU Support Team

Quick help & support.

Official Koolux

Genuine brand new stock

Product variants:

Trustpilot Rated 4.8

Delivery Information

Restock & next steps

This item is currently sold out and isn’t available for immediate dispatch
If you need a confirmed ETA, contact us with the product name and we’ll check the next incoming stock
Use the “Notify me when available” / restock alert on this page (if enabled) to get an instant email when it returns
We can also recommend an in-stock alternative if you tell us your budget and use-case

Returns

Returns accepted within 30 days for unused items
No returns for change of mind once used

Warranty Information

1-year manufacturer warranty (manufacturing defects under normal use)
Covers faulty components or defects confirmed by the manufacturer
Excludes wear & tear items (e.g. tyres, tubes, brake pads), accidental damage, misuse, water ingress, and unauthorised modifications
If an issue occurs, contact our support team with your order number plus photos/video where possible
We’ll help diagnose the fault and arrange the next step (repair, replacement parts, or warranty support where applicable)

0% APR Finance Options

Koolux X14 Key Features

Quick Summary

The Koolux X15 is a versatile electric mountain bike designed for both urban commuting and off-road adventures. With its powerful motor, long-range battery, and durable frame, it offers a comfortable and efficient riding experience.

Power & Performance

Equipped with a 250W rear hub motor delivering up to 500W peak power and 60Nm torque, the X15 provides smooth acceleration and the ability to tackle moderate inclines. The top speed is capped at 25km/h, with the option to unlock higher speeds for off-road use.

Comfort & Control

The 26" x 3.0" pneumatic tyres and lockable front suspension fork absorb shocks, providing a comfortable ride over various terrains. The Shimano 7-speed gearing system allows for easy adjustments to suit different riding conditions.

Smart Battery System

The 48V 15.6Ah removable lithium-ion battery offers a range of up to 120km on a single charge, depending on terrain and rider weight. Charging takes approximately 6–7 hours, and the battery can be easily removed for convenient charging.

Tech You Can Trust

The multifunctional LCD display provides real-time information on speed, battery level, and assist mode. The front and rear mechanical disc brakes ensure reliable stopping power, enhancing safety during rides.

Built for Everyday Use

The aluminium alloy frame is both lightweight and durable, suitable for daily commuting, errands, or weekend leisure rides. The bike's design is both practical and stylish, catering to riders who value performance and aesthetics.

Koolux X14 Specifications

Collection	Electric Bikes
Brand	Koolux
Bike Type	City & Commuter, Mountain
Motor Power	500W
Battery	48V 15AH
Top Speed	15.5 MPH
Acceleration Method	Regular Pedaling + Pedal Assist + Throttle Acceleration
Max Range	31 Miles
Charging Time	7+ Hours

Shock Absorbers	Front
Wheel Size	26inch
Brakes	Dual Mechanical Disc Brakes
Gears	7 Speed Gears
Max Climb	15 degrees
Max Rider Weight	150KG

Handlebars of a bicycle with an electronic display screen on the left side, gear shifter on the right, and black brake levers on both sides, viewed from the rider’s perspective against a white background.

Clear and Intuitive LCD Display for Real-Time Ride Monitoring

The KOOLUX X15 is equipped with a multifunctional LCD display that provides real-time information on speed, battery level, distance traveled, and selected riding mode. This user-friendly interface ensures you stay informed throughout your ride, enhancing both convenience and safety. Whether you're commuting or exploring, the display offers clear visibility of essential data, helping you manage your ride effectively.

Close-up of a black, wide, padded bicycle seat with a center cut-out, mounted on a silver bike frame. The seat looks ergonomic and is attached above the battery compartment.

Enhanced Comfort with Adjustable Saddle and Ergonomic Design

The KOOLUX X15 electric bike is designed with rider comfort in mind. It features an adjustable seat that allows for personalized positioning, ensuring a comfortable ride tailored to individual preferences. The ergonomic design of the saddle promotes proper posture and reduces strain during rides. For added comfort, riders can consider upgrading to a suspension seatpost, which can further absorb shocks and vibrations, enhancing the overall riding experience.

Close-up side view of the rear wheel, gears, chain, and pedal of a black and blue electric bicycle, showing the motor, derailleur, and battery mounted on the frame.

Robust 26" x 3.0" Fat Tires for Enhanced Stability and Comfort

The KOOLUX X15 electric bike is equipped with 26-inch wheels featuring 3.0-inch fat tires, designed to provide superior traction and stability across various terrains. These wide tires offer enhanced grip and shock absorption, ensuring a smooth and comfortable ride whether you're navigating city streets or exploring off-road paths. The larger contact area of the fat tires contributes to better control and a more stable riding experience.