Up to 150 km range • 48V (23.4Ah total) • Hydraulic discs • 20×4.0″ tires
Maximum Load
120 kg
Motor Power
250W continuous rated rear hub
Range
Up to 150 km
Waterproof
IP54 water resistance
Battery
Dual 48V 11.7Ah batteries (23.4Ah)
Free Shipping All Over Great Britain
Key Specifications
Model
X11
Battery Type
Lithium-ion
Battery Capacity
23.4Ah
Voltage
48V
Motor Rated Power
250W continuous rated
Motor Type
Rear hub
Charging Time
~5–7 hours
Tyre Size
20×4.0″
Range
Up to 150 km
Top Speed
25 km/h
Maximum Load
~120–150 kg
Climbing Ability
20°
Waterproof Grade
IP54
Brakes
Hydraulic disc
Frame
Foldable
Display
LCD Display
Keep the 25 km/h limit on public roads. Range varies with rider weight, terrain, temperature, tyre pressure, assist level and riding style.
Features And Details
What's In The Package
Ebike x 1
Bicycle Pump x 1
Bicycle Lock x 1
Battery Charger x 1
Installation Tools x 1
Key x 2
Frequently Asked Questions
How far can I ride on a single charge?
In typical mixed riding, owners and retailers report 80–150 km per charge from the dual 48V 11.7Ah batteries (23.4Ah total). Expect the higher end with eco PAS on flatter routes and the lower end with heavy throttle, hills, or cold weather.
What’s the top speed, and is it road-legal in the UK/EU?
The X11 is commonly configured at 25 km/h to comply with EU/UK e-bike rules (EPAC). Some listings mention higher “ Check your local regulations before altering speed limits.
What motor and battery setup does it use?
A rear-hub 250W motor (~250W/250W) paired with two 48V 11.7Ah batteries (total 23.4Ah), giving strong range and balanced weight.
Does it have hydraulic brakes and fat tires?
Yes. Retailers list hydraulic disc brakes front and rear and 20×4.0″ Kenda fat tires for grip on mixed terrain.
Is it okay in rain?
Listings cite IP54 water resistance, fine for light rain and road spray. Avoid submersion and pressure-washing; dry and store indoors after wet rides.
How long does charging take?
Retailers indicate roughly 5–7 hours depending on charger amperage and depth of discharge.
Legal use notice: For UK public-road use, e-bikes must meet EAPC rules including a 250W continuous rated motor and assistance cut-off at 25 km/h (15.5 mph). Do not derestrict or use non-compliant modes on public roads. Available variants must be used according to local law.
Rider reviews
5.0
1 verified review
I recently purchased the KOOLUX X11 folding fat-tire e-bike from e-trailz
I recently purchased the KOOLUX X11 folding fat-tire e-bike from e-trailz, and I couldn't be happier with both the product and the service!
The e-trailz Experience
e-trailz's service was fantastic. The communication regarding my order was prompt and helpful, and the delivery was quick.
