Koolux BK6S 4.0 Electric Bike
Availability Notification
We'll notify you as soon as the item is back in stock.
Koolux BK6S 4.0 Electric Bike
Colour: Black
Product Specifications
| Brand: | Koolux |
| Bike Type: | City & Commuter, Folding, Fat Tyre |
| Motor Power: | 500W |
| Battery Ah: | 15AH |
| Battery Voltage: | 48V |
| Maximum Speed: | 15.5MPH |
| Maximum Range: | |
| Charging Time: | 5+ Hours |
| Brakes: | Front & Rear Hydraulic |
| Bike Weight: | 27KG |
| Max Climb: | 15 degrees |
| Maximum Load: | 150KG |
Quick Summary
The KOOLUX BK6S 4.0 combines rugged fat‑tyre traction with a powerful 500 W motor and a high‑capacity 48 V 15 Ah battery. Designed for both urban streets and off‑road paths, it delivers stable handling and dependable performance.
Smooth Power Delivery
The 500 W hub motor offers responsive acceleration and smooth pedal‑assist across seven levels, letting you tackle hills and headwinds without strain. A thumb throttle provides instant power when you need a boost.
Comfort & Control
Wide 4.0″ tyres and front suspension absorb bumps and maintain grip on loose or uneven surfaces. Dual mechanical disc brakes ensure consistent, controlled stopping power in all weather.
Smart Battery System
A lockable, removable 48 V 15 Ah battery provides long-range capability and convenient off‑bike charging. Built‑in protection circuits guard against over‑charge, over‑discharge, and overheating for safe, reliable use.
Tech You Can Trust
The clear backlit LCD displays speed, battery level, distance travelled, and assist mode at a glance. Simple handlebar controls let you switch assist levels and monitor ride data easily.
Built for Everyday Use
With its durable frame, fat‑tyre stability, and straightforward folding rack mount design, the BK6S 4.0 is ready for daily commutes, weekend adventures, and everything in between—wherever you choose to ride.
Please note that the use of electric scooters and electric bikes in the UK is subject to specific regulations.
Electric Scooters:
Currently, privately owned electric scooters are not permitted on public roads, pavements, or cycle lanes. They are only legal on private land with the landowner’s permission.
Riders are advised to familiarize themselves with local laws and guidelines to avoid potential fines or penalties.
Electric Bikes (E-Bikes):
Electric bikes that meet UK government criteria (pedal-assisted, motor limited to 250W, and a maximum speed of 15.5 mph) are classified as Electrically Assisted Pedal Cycles (EAPCs). These can be used on public roads and cycle lanes without a license, tax, or insurance.
Riders must be at least 14 years old to legally ride an EAPC in the UK.
By purchasing and using these products, customers acknowledge their responsibility to comply with all applicable laws and regulations. Our company cannot be held liable for misuse or legal consequences resulting from non-compliance.
For more information, please refer to the UK Government’s official guidelines.
The customer assumes all liability and risk associated with the use of electric scooter or electric bike products and holds TrailSurge and its owners free from any liability caused by their use. Certified helmets and full protective gears must be worn at all times for your own safety.
Your item will be delivered in 3-5 Working Days. We will dispatch your product and give you tracking details usually within 2 days of ordering. We use a panel of delivery companies such as DPD, Parcelforce, DX, and BJS Home Delivery.
Frequently Asked Questions
Authorised Brands
