The KOOLUX X12 Folding Electric Bike combines a 500W motor, a 48V 13Ah lithium-ion battery and 20 × 4.0-inch fat tyres in a folding aluminium alloy frame. With a quoted range of 55–120 km per charge, it is a practical choice for commuting, weekend rides and anyone who needs to store an e-bike in a flat, office or car boot.
The X12 is available in two colourways – Grey + Green and Grey + Red. It is fitted with hydraulic brakes, a TW35H display with APP and NFC support, a front suspension fork, front headlight, rear cargo rack and front and rear mudguards, and its IP54 rating protects it against rain and road spray.
| Model Name | KOOLUX X12 Folding Electric Bike |
| Motor | 500W |
| Battery | 48V 13Ah lithium-ion |
| Range | 55–120 km |
| Speed | 25 km/h (standard) / 40 km/h (unlocked) |
| Tyres | 20 × 4.0″ fat tyres |
| Brakes | Hydraulic brakes |
| Display | TW35H display with APP & NFC |
| Frame | Aluminium alloy, folding |
| Charging Time | 7–8 hours |
| Climbing Ability | 25° |
| Waterproof Rating | IP54 |
| Max Load | 120 kg (264 lbs) |
| Net / Gross Weight | 30 kg / 37.5 kg |
| Unfolded Size | 165 × 58 × 116 cm |
| Package Size | 143 × 30 × 70 cm |
| Colours | Grey + Green, Grey + Red |
Key Features of the KOOLUX X12 Folding Electric Bike
500W Motor and 48V 13Ah Battery
The 500W motor delivers strong acceleration and helps on hills, with a rated climbing ability of 25°. Power comes from a 48V 13Ah lithium-ion battery that offers 55–120 km per charge depending on rider weight, terrain, speed and assistance level. A full charge takes around 7–8 hours.
20 × 4.0-Inch Fat Tyres
Wide 20 × 4.0-inch fat tyres add grip and cushioning on rough tarmac, gravel paths and park trails, while the compact 20-inch wheels keep the bike nimble and easy to fold.
Hydraulic Brakes
Hydraulic brakes provide smooth, consistent stopping power with light lever effort – ideal for stop-start city traffic and wet UK weather.
TW35H Display with APP and NFC
The handlebar-mounted TW35H display keeps your riding information in view and supports app connection and NFC.
Folding Aluminium Alloy Frame
The aluminium alloy frame and handlebar fold down so the X12 fits into smaller storage spaces and car boots. Unfolded, it measures 165 × 58 × 116 cm, and it weighs 30 kg (net).
Ready for Everyday Riding
- Front suspension fork to soften bumps and potholes
- Front headlight for better visibility
- Rear cargo rack for bags and shopping
- Front and rear mudguards to keep road spray off
- IP54 water resistance for all-weather riding
- 120 kg (264 lbs) maximum load
Who Is the KOOLUX X12 Best For?
Urban commuters – a compact folding e-bike for daily journeys to work or college.
Flat and apartment owners – folds down for easy storage when space is limited.
Leisure riders – fat tyres add comfort and grip on park paths and gravel tracks.
Drivers and travellers – fold it and take it with you in a car boot, motorhome or caravan.
Where Can You Ride the KOOLUX X12?
The X12 is at home on city streets, cycle paths, park trails and gravel tracks. It is set to 25 km/h as standard; the unlocked 40 km/h mode is intended for private land only. Always check the current UK e-bike (EAPC) regulations before riding on public roads.
Maintenance Tips
Check tyre pressure regularly, keep the chain clean and lubricated, and inspect the hydraulic brakes and pads for wear. Charge and store the battery indoors at room temperature, avoid leaving it fully discharged for long periods, and make sure all folding joints are securely locked before every ride.
Frequently Asked Questions
What is the range of the KOOLUX X12?
KOOLUX quotes 55–120 km per charge. Real-world range depends on rider weight, terrain, speed, weather and assistance level.
How fast can the KOOLUX X12 go?
It is set to 25 km/h as standard, with an unlocked mode of up to 40 km/h for private land use.
How long does the battery take to charge?
Around 7–8 hours for the 48V 13Ah lithium-ion battery.
Is the KOOLUX X12 waterproof?
It has an IP54 rating, which protects it against rain and splashes. Avoid riding through deep water and do not use a pressure washer.
What is the maximum load?
120 kg (264 lbs).
What colours are available?
Grey + Green and Grey + Red.
What are the package size and weight?
The X12 ships in a 143 × 30 × 70 cm box with a gross weight of 37.5 kg.
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