Skip to product information
1 of 4

KOOLUX BK10S Foldable Fat Tire E-Bike

KOOLUX BK10S Foldable Fat Tire E-Bike

5.0 1+ online reviews

Koolux

Regular price £739.00 GBP
Regular price £849.00 GBP Sale price £739.00 GBP
You Save 13 (£110.00)
Sale Sold out
Fast Delivery Available
👀 people have their eyes on this product right now.
Color: Black

Low stock

Image below Buy Now button

Conquer city streets, rugged trails, and sandy beaches with ease—the KOOLUX BK10 Foldable Fat Tire E-Bike is your ultimate ride for adventure, commute, or weekend getaways. Designed with versatility, portability, and performance in mind, the BK10 is perfect for riders who crave freedom without compromising comfort or functionality.

Key Features:

  • 3 Riding Modes for Ultimate Flexibility
    Switch between pedal assist, pure electric (via throttle), and manual pedaling to suit your riding style and terrain. The Shimano 7-speed gear system offers smooth transitions and effortless climbing.
  • Fat Tires for All-Terrain Dominance
    The upgraded 20x4.0-inch puncture-resistant tires provide maximum stability and control—whether you’re riding on pavement, dirt, sand, or snow.
  • Powerful Motor & Long-Range Battery
    Featuring a 250W high-torque motor (58Nm) and a hidden 48V 13Ah lithium battery, the BK10 delivers speeds up to 25 km/h (or 45 km/h when unlocked) and a range of up to 90 km per charge.
  • Folds in Seconds for Easy Storage
    Lightweight aluminum alloy frame folds down to just 92x50x80 cm, making it easy to transport in your car, RV, or apartment.
  • Enhanced Comfort and Safety
    Ride with confidence thanks to the front suspension fork, dual disc brakes, LED headlight & taillight, and mudguards. Stay informed with a multifunction LCD display showing speed, battery level, and more.
Total Length: 168 cm
Handlebar Height: 96-108 cm
Wheelbase: 110 cm
Standover Height: 82-102 cm
Top Tube Length: 60 cm
Wheel Diameter: 20”
Handlebar Length: 60 cm
Folded Size: 92*50*80 cm
Rider Height: 165-195 cm

Technical Specifications:

Feature Specification
Motor 250W Hub Motor (58Nm Torque)
Battery 48V 13Ah Removable Lithium-ion
Top Speed 25 km/h (45 km/h unlocked)
Range 35–90 km (22–56 miles)
Drive Modes Pedal, Pedal Assist, Throttle
Transmission Shimano 7-Speed Gear System
Tires 20x4.0" All-Terrain, Puncture-Resistant
Brakes Mechanical Disc Brakes
Suspension Front Fork Suspension
Display Multifunctional LCD
Frame Foldable Aluminum Alloy
Weight 27.7 kg (Net)
Max Load 120 kg / 265 lbs
Charging Time 5–6 Hours
Folded Size 92 x 50 x 80 cm
Rider Height 165–195 cm

Why Choose the KOOLUX BK10 Foldable E-Bike?

  • Designed for Real-Life Adventures
    Whether you're heading out for a day of urban exploration or weekend camping, the BK10 is ready. Its fat tires and powerful motor make it equally capable on trails, slopes, or streets.
  • Foldable Freedom
    Easy to fold and store in seconds—ideal for apartment dwellers, commuters, or adventurers with limited space.
  • Sleek and Secure Battery System
    The fully integrated battery design not only looks sharp, but it also adds security and improves weather resistance. Remove it in seconds for off-bike charging.
  • Built-In Safety Features
    Front and rear LED lights, wheel reflectors, and strong disc brakes ensure you're visible and in control—even during nighttime rides or on slippery paths.
  • Ready for Anything
    Includes essentials like a bike pump, lock, throttle, charger, assembly tools, and spare keys, so you can hit the road from day one

 

FAQs:

  • Q: Is the bike street legal in the UK/EU?
    Yes, the KOOLUX BK10 complies with local regulations for electric bikes with a 250W motor and 25 km/h max speed (in standard mode).
  • Q: How long does the battery last?
    The battery lasts 35–90 km per charge, depending on terrain, rider weight, and mode used.
  • Q: Can I unlock the speed limiter?
    Yes, for off-road use, the speed can be unlocked up to 45 km/h. Please follow local laws regarding speed limits.
  • Q: Is it difficult to fold and carry?
    Not at all! The lightweight aluminum frame folds quickly and compactly, and the bike weighs just 27.7 kg, making it relatively easy to lift into a car trunk or storage area.
  • Q: Is the battery removable?
    Yes, the 48V 13Ah battery is fully removable for convenient charging anywhere.
  • Ready to ride into your next adventure?
    Get the KOOLUX BK10 today and explore more with comfort, confidence, and style.

What's Included in the Package?

Throttle × 1
Bike Pump × 1
Charger (UK Plug) × 1
Lock × 1
Assembly Tools × 1
Keys × 2

View full details
Icon Image
Secure Checkout
Icon Image
Easy Return
Icon Image
Money Back Guarantee
Icon Image
Product Warranty

Have a question? Our team is ready so just reach out.

We’re here to help with all your questions big or small.

Check out some of our most common Q&As to get started.

What is your return policy?

Your satisfaction means everything to us. To request a return, simply email info@wheeltrek.co.uk within 14 days of receiving your order. Please ensure the item is unused, with tags attached and in its original packaging and return it within the 14-day window.

For full details,
visit: https://wheeltrek.co.uk/pages/return-and-refund-po….

Refunds can take between 5-10 days.

How quickly can I receive my order?

We aim to process and dispatch in-stock orders within 1–2 working days.

Delivery typically takes 3–5 working days. Orders over £500 get FREE UK
mainland delivery.

Timelines may vary by brand. Tracking is emailed within 24 hours of dispatch. We only ship to UK addresses.

Be sure to report any damage within 14 days to info@wheeltrek.co.uk

Are e-bikes legal in the UK and where are you allowed to ride them?

Yes, e-bikes that meet EAPC (Electrically Assisted Pedal Cycle) regulations
are legal and can be ridden without a licence, insurance or vehicle tax.

e-bikes can be used on public roads, cycle paths, and anywhere
regular bicycles are allowed
 but not on pavements.

Do I need a licence to ride an e-scooter?

Privately owned e-scooters are currently illegal on public roads but rental
e-scooters require at least a provisional driving licence.

Do you offer warranties and after sales support?

Yes absolutely! All our products come with a manufacturer’s warranty and our
customer service team is here to assist with any issues.

How long does it take to fully charge an e-bike battery and how far can you travel?

Charging times vary depending on the model and battery capacity but most e-bike batteries take between 3 to 6 hours to fully charge. On a full charge, you can typically expect a range of 30 to 100 miles depending on factors like terrain, rider weight and level of pedal assistance.

Lorna Waite

My e-bike has made my commute easier. It’s really cute and such a lovely design. I actually look forward to getting on it every day as it's so much fun.

Commute EX Ladies Electric Bike with 15-inch frame and Samsung battery

Simon Capewell

Buying this has been a game changer and is an absolute pleasure to ride. The service was top-notch too as the team were really friendly and professional. I can definitely recommend WheelTrek.