Koolux X9 Mini Fat Tyre Electric Bike
SKU: N50737In Stock

SPEED15.5 Mph
RANGE50 Miles
MOTOR250W
BATTERY13Ah
CHARGING7 Hours
WEIGHT76 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 Legislation
Compact design for everyday freedom
Rediscover the joy of getting around with the Koolux X9 Mini, a bike that fits seamlessly into your daily routine. Whether you're nipping to the shops, commuting to work, or enjoying a leisurely ride along a canal towpath, its compact frame and stable build make every trip feel effortless. The intuitive controls help you build confidence on two wheels, encouraging a more active lifestyle without any fuss.
This e-bike is a brilliant way to get the whole family outdoors. It's approachable enough for teenagers finding their independence, yet practical for adults who want a reliable runaround. By choosing electric, you're not just beating the traffic—you're embracing a cleaner, more enjoyable way to move through your local area.

Key specs at a glance
Powered by a 250W rear-hub motor that complies with UK regulations, the X9 Mini delivers smooth assistance up to 15.5 mph. The removable 48V 13Ah lithium-ion battery (624Wh) charges in around 7 hours and offers up to 50 miles of range in pedal-assist mode—plenty for most daily trips. A Shimano 7-speed gearset, dual disc brakes, and full suspension keep you in control on potholed city streets or gravel paths.
Built to handle real-world loads, it supports riders up to 19 stone and tackles inclines of 25 degrees with ease. The 16x4.0-inch fat tyres soak up bumps and provide reassuring grip, while integrated front and rear lights help you stay seen on busy UK roads. At 34.5 kg, it's substantial yet manageable, and the smart app connectivity adds a modern touch to your ride.

Responsive power and confident stopping
Feel the instant, quiet push from the 250W motor as you pull away from traffic lights, with a top assisted speed of 15.5 mph that's perfectly legal on UK roads. The electronic gear system lets you click through three levels of assistance, making light work of steep hills—even those 25-degree climbs you'd normally avoid. It's like having a tailwind whenever you need it.
Stopping is just as important as going, which is why the X9 Mini uses mechanical disc brakes front and rear. They deliver consistent, short stopping distances whether you're caught in a sudden downpour on the M25 feeder roads or cruising in dry summer sunshine. That dependable braking power gives you the confidence to ride in all conditions.

Removable battery for flexible charging
No need to drag the whole bike indoors—simply pop out the 48V 13Ah battery and charge it at your desk, in the kitchen, or wherever suits you best. A full charge takes about 7 hours, so you can top up overnight and be ready for the morning commute. With up to 50 miles of range in pedal-assist mode, you'll cover a week's worth of short trips without worrying about running out of juice.
Even on pure electric power, you can expect over 28 miles of range, making it a practical choice for longer journeys across town. Whether you're riding from the suburbs into the city centre or exploring country lanes at the weekend, the X9 Mini gives you the freedom to go further without the range anxiety.

Stay informed with a clear LCD display
Ride with confidence thanks to the backlit multifunction LCD screen that keeps essential data in view. You can easily check your current speed and distance covered at a glance, even in bright sunlight. Adjusting the assistance level on the fly lets you match the motor’s power to the road conditions, whether you’re climbing a steep hill or cruising through town.

Dual suspension smooths out any ride
Enjoy a remarkably comfortable journey on everything from potholed city streets to bumpy bridleways. The full dual suspension system absorbs shocks and vibrations, keeping the bike stable and your body fresh. You’ll feel in complete control, with the bike tracking true even when the surface gets rough.
Shimano 7-speed gears for every incline
Tackle steep hills and uneven ground without breaking a sweat. The reliable Shimano 7-speed gear system lets you find the perfect ratio for climbing, descending, or maintaining a steady pace on mixed terrain. It’s a proven solution that makes light work of snowy lanes, gravel tracks, and challenging off-road routes.

Fat 16x4.0-inch tyres grip any surface
Go anywhere with confidence on these chunky, anti-slip tyres designed for true all-terrain versatility. From sandy beaches and snowy paths to mountain trails and urban tarmac, the generous footprint delivers exceptional traction and stability. You’ll feel the difference as the bike floats over soft ground and holds firm on loose gravel.
LED lights keep you seen at night
Ride safely after dark with a bright LED headlight that illuminates the road ahead and a rear light that makes you visible to traffic behind. The integrated horn gives you a clear way to alert other road users, adding an extra layer of awareness on busy UK streets. Together, these features help you stay conspicuous and ride with peace of mind.

Ergonomic saddle supports long-distance comfort
Settle into a saddle shaped to follow the natural curve of your lower back, reducing pressure and fatigue even on all-day rides. The design strikes a careful balance between plush cushioning and firm support, so you can cover more miles without discomfort. It’s a small detail that transforms your journey into a genuinely enjoyable experience, whether you’re commuting or exploring the countryside.




- BRANDKoolux
- CATEGORYFat Tire
- MOTOR POWER250W
- RANGE50 Miles
- SPEED15.5 Mph
- BATTERY13Ah
- WEIGHT76 lbs
- CHARGING TIME7 Hours
- BRAKE SYSTEMMechanical Disc
- FRAME MATERIALN/A
- MAXIMUM LOAD265 lbs
- INPUT VOLTAGE48V
- TIRE SIZE16 inch
- TORQUEN/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.
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