SPEED15.5 Mph
RANGE112 Miles
MOTOR250W
BATTERY31.2Ah
CHARGINGMore Than 5 Hours
WEIGHT80 lbs
This Model Is Fully Compliant With UK Road Regulations
This bike is built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning it 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).
See UK LegislationRide Further With The Koolux X9 Pro
The Koolux X9 Pro is built for UK riders who want one e-bike that can handle the daily commute, weekend trails, and everything in between. With a massive 112-mile range and a powerful 250W motor, it takes the worry out of longer journeys and lets you explore more of Britain's roads and paths. Whether you're dodging city traffic or heading into the countryside, this fat tyre e-bike delivers dependable performance and comfort.
Powerful 250W Motor For Steady Assistance
Climb hills and maintain a comfortable pace with the Koolux X9 Pro's 250W rear hub motor. It provides smooth, reliable assistance up to 15.5 mph, in line with UK road regulations. The motor's quiet operation and consistent power make every ride feel effortless, from busy streets to gentle off-road tracks.
Dual Battery System For 112-Mile Range
Go further on a single charge thanks to the Koolux X9 Pro's dual 48V 15.6Ah batteries, giving a total capacity of 31.2Ah. That means up to 112 miles of assisted riding, so you can commute all week or take on long leisure rides without constantly hunting for a plug socket. The batteries are removable, making it easy to charge them indoors or keep them secure.
Fat Tyres And Suspension For A Smooth Ride
Enjoy a comfortable ride on any surface with the Koolux X9 Pro's 20-inch fat tyres and front suspension fork. The 4-inch wide tyres absorb bumps and provide excellent grip, while the suspension smooths out rough roads and trails. Whether you're on tarmac, gravel, or muddy paths, this e-bike keeps you stable and in control.
Hydraulic Disc Brakes For Confident Stopping
Stop safely in all weather conditions with the Koolux X9 Pro's hydraulic disc brakes. They deliver strong, responsive braking power, even when it's raining or the trails are muddy. With reliable stopping performance, you can ride with confidence on steep descents and busy streets.
LCD Display And 7-Speed Gears For Control
Stay informed and in command with the Koolux X9 Pro's clear LCD display, which shows your speed, battery level, and trip data at a glance. The Shimano 7-speed drivetrain lets you easily adjust your pedalling effort, while the three riding modes, pedal assist, pure electric, and classic pedalling, give you flexibility for any journey.
Durable Aluminium Frame For Everyday Use
Built to last, the Koolux X9 Pro features a strong aluminium alloy frame that supports riders up to 265 lbs. It comes with practical extras like a pillion seat extender and optional front basket, making it ideal for shopping trips, commuting, or carrying gear. The removable batteries also add security, letting you take them with you when you park.
- BRAND
- KOOLUX
- CATEGORY
- Fat Tire
- MOTOR POWER
- 250W
- RANGE
- 112 Miles
- SPEED
- 15.5 Mph
- BATTERY
- 31.2Ah
- WEIGHT
- 80 lbs
- CHARGING TIME
- More Than 5 Hours
- BRAKE SYSTEM
- Disc Brake – Hydraulic
- FRAME MATERIAL
- Aluminium Alloy
- MAXIMUM LOAD
- 265 lbs
- INPUT VOLTAGE
- 48V
- TIRE SIZE
- 20 inch
- TORQUE
- N/A
Secure checkout and fast UK delivery on every order.
- Free standard UK delivery on most bikes — 2 to 7 business days
- Express delivery may be available on request
- Full tracking included with every order
- Pay securely with Visa, Mastercard, PayPal, Apple Pay, Google Pay, or Klarna
- 0% finance available through Klarna at checkout
Before you order:
- Delivery is to UK mainland addresses — some remote areas may have a small surcharge
- Most bikes arrive 85–90% pre-assembled and include basic tools for setup
- If you are unsure about sizing or specs, contact us before you buy
Full details at Payment & Shipping.
Simple and fair terms so you can buy with confidence.
- 14-day return window — if the bike is not right for you, send it back
- The bike must be unused, in original packaging, with all accessories included
- A refund or replacement is issued after we receive and check the return
Please note:
- Returns for change of mind must meet the unused and original condition requirement
- If we sent the wrong item or it arrived faulty, we cover return shipping in full
- All bikes include a 12-month manufacturer warranty as standard
Full details at Returns & Refunds and Warranty.
Customer Reviews
Absolute beast of a bike! KOOLUX X9 Pro is super fast, powerful dual battery lasts forever, feels solid and worth every penny!!
Excellent bike. I am very satisfied with it. It has good power, feels smooth on the road, and is very relaxing to ride. The quality feels solid, and it is comfortable for both daily use and longer rides. I would definitely recommend it 👍👍👍
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