Free Express Delivery

14-Day Money Back Guarantee

UK Stock & 12 Months Warranty

0% Finance Available

Deliver to United Kingdom

Koolux X9 Electric Bike with Fat Tires

Smooth rides on any terrain

£849.00
Out of Stock
Delivered by Sunday if you order within 2 hrs 48 min
  • SPEEDSPEED16 Mph
  • RANGERANGE50 Miles
  • MOTORMOTOR250 W
  • BATTERYBATTERY15 Ah
  • CHARGINGCHARGING8 Hours
  • WEIGHTWEIGHT176 Lbs
Need help? Chat with us for quick clarifications
  • visa
  • master
  • amex
  • apple
  • googlePay
  • paypal
UK Legislation
UK Legislation

This model is fully compliant with UK road regulations.

See UK Legislation

Warranty

Every BikTron purchase includes a 12-month warranty.

See Warranty Details
Questions? Give us a call at +44 6453 746234

Experience the thrill of riding with the Koolux X9 Electric Bike, designed for those who seek adventure and comfort. This e-bike is equipped with a powerful 250W motor and robust fat tires, making it perfect for both city streets and rugged trails.

Koolux X9 Electric Bike with Fat Tires

Powerful Motor and Battery

The Koolux X9 features a 250W hub motor that delivers 70Nm of torque, providing strong acceleration and the ability to tackle inclines up to 25 degrees. Its 48V 15.6Ah lithium-ion battery ensures a range of up to 80 km, making it ideal for long commutes or weekend adventures.

Koolux X9 Electric Bike Motor

Versatile Riding Modes

Choose from three riding modes: pedal assist, pure electric (with optional throttle), and manual pedaling. The Shimano 7-speed gear system allows you to adapt your ride to any situation, whether you're cruising through the city or exploring off-road paths.

Koolux X9 Electric Bike Riding Modes

Comfort and Stability

Ride with confidence on the Koolux X9's 20x4.0” fat tires, which provide excellent grip and stability across all terrains. The dual suspension system, featuring a front fork and central shock absorber, ensures a smooth and comfortable ride even on bumpy roads.

Koolux X9 Electric Bike Suspension

Safety and Visibility

Stay safe with mechanical disc brakes that offer reliable stopping power in all weather conditions. The bike's retro motorcycle-inspired frame not only turns heads but also includes double reflectors and a bright rear light for increased visibility at night.

Koolux X9 Electric Bike Safety Features

Additional Features

The Koolux X9 is equipped with a multifunctional LCD display that keeps you informed of your speed, battery level, and distance travelled. With a maximum load capacity of 120 kg and a water resistance rating of IP54, this bike is built to withstand various conditions.

Koolux X9 Electric Bike LCD Display

Order your Koolux X9 Electric Bike today and enjoy fast UK delivery. Experience the perfect blend of power, style, and comfort on your next ride.

  • Battery
    15 Ah
  • Charging Time
    8 Hrs
  • Speed
    16 Mph
  • Motor Power
    250 W
  • Range
    50 Miles
  • Brake System
    Mechanical Disc
  • Frame Material
    Aluminium Alloy
  • Weight
    176 Lbs
  • Max Load
    584 Lbs
  • Tire Size
    20 In
  • Torque
    70 Nm

Yes. All electric bikes sold by Biktron are brand new, factory-sealed, and sourced directly from authorized manufacturers and official distributors.

You can select your bike based on riding style (city, mountain, cargo, folding), range, motor power, and terrain. If you’re unsure, our team can help you choose the best model for your needs.

Yes. Every e-bike battery is brand new and original from the manufacturer, with full safety certification and performance testing.

Yes. Each e-bike undergoes a quality control check before dispatch, including electronics, brakes, motor response, and battery performance.

Yes. All electric bikes purchased from Biktron include a manufacturer warranty. Warranty duration depends on the brand and model.

Standard delivery usually takes 2 to 7 business days within the UK. Delivery times may vary for remote areas.

We accept Stripe, PayPal, Apple Pay, Google Pay, and debit/credit cards. All payments are secured with SSL encryption.

Yes. You can return your bike within 14 days of delivery if it is unused, in original packaging, and in resalable condition.

Most electric bikes arrive 85–90% pre-assembled. Basic setup such as handlebars, pedals, and seat adjustment is usually required.

Currently, Biktron focuses on deliveries within the UK. International shipping may be added in the future.

Please note that the use of electric scooters and electric bikes in the UK is subject to specific regulations.

Electric Scooters:

Currently, privately owned electric scooters are not permitted on public roads, pavements, or cycle lanes. They are only legal on private land with the landowner’s permission.

Riders are advised to familiarize themselves with local laws and guidelines to avoid potential fines or penalties.

Electric Bikes (E-Bikes):

Electric bikes that meet UK government criteria (pedal-assisted, motor limited to 250W, and a maximum speed of 15.5 mph) are classified as Electrically Assisted Pedal Cycles (EAPCs). These can be used on public roads and cycle lanes without a license, tax, or insurance.

Riders must be at least 14 years old to legally ride an EAPC in the UK.

By purchasing and using these products, customers acknowledge their responsibility to comply with all applicable laws and regulations. Our company cannot be held liable for misuse or legal consequences resulting from non-compliance.

For more information, please refer to the UK Government’s official guidelines.

Related Models

More From This Brand

Explore additional electric bikes from the same brand, offering similar quality, performance, and value to match your riding needs.

Koolux BK10s Fat Tyre Electric Bike

Koolux BK10s Fat Tyre Electric Bike

£699.00
Out of Stock
  • SPEEDSPEED16 Mph
  • RANGERANGE35 Miles
  • MOTORMOTOR250 W
  • BATTERYBATTERY13 Ah
Shop Now
Koolux BK6S PRO Double Battery E-Bike

Koolux BK6S PRO Double Battery E-Bike

£899.00
Out of Stock
  • SPEEDSPEED15 Mph
  • RANGERANGE93 Miles
  • MOTORMOTOR250 W
  • BATTERYBATTERY23 Ah
Shop Now
Koolux X9 Electric Bike with Fat Tires

Koolux X9 Electric Bike with Fat Tires

£849.00
Out of Stock
  • SPEEDSPEED16 Mph
  • RANGERANGE50 Miles
  • MOTORMOTOR250 W
  • BATTERYBATTERY15 Ah
Shop Now
Koolux X1 Folding Electric Bike

Koolux X1 Folding Electric Bike

£399.00
  • SPEEDSPEED16 Mph
  • RANGERANGE31 Miles
  • MOTORMOTOR250 W
  • BATTERYBATTERY6 Ah
Shop Now

Discover Your Match

Let’s Find Your Dream Electric Bike

Answer a few fun questions and we’ll match you with the e-bike that fits your lifestyle, speed, and spirit.

Start the Quiz

Don’t miss out

The Latest on BikTron Deals & Gear

Join to get updates on new releases, special offers, and expert e-bike advice.

Thanks—you're subscribed.

Check your inbox to confirm.