Name: KOOLUX BK10S Folding Fat Tyre Electric Bike
Brand: Koolux
SKU: 5651
Price: 749 GBP
Availability: InStock

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KOOLUX BK10S Folding Fat Tyre Electric Bike

KOOLUX BK10S Folding Fat Tyre Electric Bike

Shop the KOOLUX BK10S folding fat tyre electric bike for city and mixed-terrain riding, with smooth assistance, compact storage and everyday comfort.

£749.00

£1,049.00Save £300.00

3 payments of £249.67 at 0% interest with klarna

Select Color: Silver

Delivered by Thursday if you order within 3 hrs 16 min

SPEED15.5 Mph
RANGE35 Miles
MOTOR250 W
BATTERY13 Ah

Road Legal

See full UK Road Legal.

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UK Stock - Fast and free delivery across the UK from Birmingham.

Road Legal - Shop with confidence using clear guidance on road-legal UK e-bikes.

Warranty - Includes a 12-month manufacturer warranty for extra peace of mind.

UK Support - Helpful UK support before purchase and after your bike arrives.

Need help? Chat with us for quick clarifications

Description

Product Overview

The KOOLUX BK10S Folding Fat Tyre Electric Bike is a practical choice for riders who want assisted power for city journeys and mixed-terrain use. Its folding design makes it easier to store, while the 20×4.0 inch fat tyres add stability and confidence on a range of surfaces.

With a 250W motor, 48V 13Ah battery, front fork suspension and Shimano 7-speed gearing, this e-bike is built for comfortable everyday riding. It suits riders looking for a compact electric bike with cushioned comfort, versatile gearing and steady handling.

Key Features

Here are some of the standout features of the KOOLUX BK10S Folding Fat Tyre Electric Bike:

250W motor with a standard speed of 25 km/h
48V 13Ah 624Wh battery for assisted riding with a range of 35–90 km
Folding frame design for more convenient storage and battery removal for charging
20×4.0 inch fat tyres for stable riding across city streets and mixed terrain
Front fork suspension for added comfort on uneven surfaces
Shimano 7-speed gearing for flexible riding across different routes
Mechanical brakes for controlled stopping in varied conditions

What to Expect

The KOOLUX BK10S offers smooth assisted riding for daily travel, leisure use and mixed-terrain routes. Expect stable handling from the fat tyres, practical comfort from the front suspension and straightforward performance with a charging time of 7–8 hours.

What’s Included

Electric bike
Battery
Charger
User manual

Assembly & Setup

The bike is designed for straightforward setup before your first ride. Once assembled, charge the battery with the supplied 54.6V 2.0A charger and check the brakes, tyres and gearing before use.

Support After Purchase

After purchase, you can expect clear product information to help with setup, charging and everyday use. The KOOLUX BK10S is designed to be practical to live with, including convenient battery access when the bike is folded.

Technical Specifications

Battery Capacity	48V 13Ah 624Wh
Battery Type	18650 Lithium Ion Power Battery
Charger	54.6V 2.0A
Charging Time	7–8 hours
Range	35–90 km
Bike Weight	31.9 / 40.1 kg
Speed	Standard 25 km/h
Load Capacity	120 kg
Waterproof Level	IP54
Tyres	20×4.0 inch
Frame	Aluminum Alloy
Brakes	Mechanical Brakes
Suspension	Front Fork Suspension
Gearing	Shimano 7 Speed

UK Road Use & Legal Information

Road Legal (EAPC)

These bikes are built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning they 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). You can read the official requirements on the UK government website.

Configurable Models

Some bikes are supplied in a restricted, road-legal setup but are capable of higher performance. If modified or used beyond EAPC limits, they may no longer qualify as road legal and could be classified as motor vehicles under UK law. This may require registration, insurance, and a driving licence. For full guidance, please refer to the official UK e-bike rules.

Private Use Only

Certain high-performance models are intended strictly for private land use with the landowner’s permission. These bikes do not meet EAPC standards and cannot be used on public roads, cycle paths, or pavements unless fully registered and insured in accordance with UK law.

If you're unsure which option is right for you, our team is here to help. Feel free to contact us before purchasing for clear guidance and peace of mind.

Returns & Delivery

Fast UK Delivery

We offer fast and reliable delivery across the UK, with most bikes dispatched within 24–72 hours and usually arriving in 3–7 working days. Every order is shipped with trusted couriers and includes tracking, as explained in our payment and shipping page, so you can follow your delivery from dispatch to arrival.

Shipping Information

Standard UK shipping is free on most bikes. Orders placed after 12 PM may ship the next working day, and some remote areas may have extra delivery charges. If a delivery is missed or returned after failed attempts, additional shipping fees may apply, as detailed in our shipping policy.

14-Day Returns

You can return your bike within 14 days of delivery as long as it is unused, in its original condition, and includes all accessories, manuals, and packaging. Please contact us first before sending anything back, following the steps outlined in our returns and refunds policy.

Refund Policy

Once your returned bike is received and inspected, approved refunds are issued to your original payment method within 2–5 business days. If the item arrives faulty, damaged, or incorrect, we cover return shipping and provide a full refund, as explained in our refund guidelines.

Customer Reviews

See why riders choose BikTron for value, delivery speed, and after-sales support.

Jakob Russ (London)

"Great experience with Biktron.uk. Fast delivery, excellent customer service, and the bike quality is outstanding for the price. Everything was smooth from order to delivery. Highly recommend!"

Amelia R. (Manchester)

"Customer support was fantastic and helped me pick the right frame size within an hour. Klarna instalments made the purchase stress-free, and the bike’s motor is quiet yet powerful. I’ve already done several long rides and the range is better than expected."

Jacob S. (Bristol)

"My courier was delayed by a day, but BikTron kept me fully informed and even followed up to check delivery. The bike handles hills far better than I imagined and feels solid on longer rides. Overall, very happy with the purchase and the service."

Sophie M. (Leeds)

"Ordering was simple and I loved the clear specs and photos online. The bike arrived well protected, and setup took less than 20 minutes. It rides beautifully — smooth, fast, and stable — and I’m already recommending BikTron to friends who want great value."

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