✔2-year warranty ✔Ship from EU warehouse ✔CE certified

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Complete vehicle  |  SKU: KL-EU-BK6S-4.0-BLACK

BK6S 4.0 750W High-end version Folding E-Bike

€899,00
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2 Year Warranty

Every KOOLUX e-bike and e-scooter comes backed by a 2-year warranty, giving you peace of mind with every mile. We cover all manufacturer and material defects—so you can focus on the ride, not the repairs.

CE Certified

Our ebikes are officially certified by CE, ensuring compliance with top-tier European safety and quality standards.

2 years

Free manufacturers warranty available

CE Cerified

Ensuring compliance with top-tier quality standards

Category Parameter Specification & Description
Product Name KOOLUX BK6S PRO Folding eBike
Key Feature Dual-Battery Powerhouse
Battery System Primary Battery 48V 13Ah Integrated Frame Battery
Secondary Battery Additional 10.4Ah Rack Battery
Total Max Range Up to 150 km
Motor & Drivetrain Motor Power High-Torque 750W Motor
Drivetrain Shimano 7-Speed Gearing
Riding & Handling Suspension Front Fork Suspension
Tires Fat Tires
Terrain City Streets, Off-Road Trails
Frame & Design Frame Design Durable & Foldable
Best For Extended Range, Rugged Performance, Daily Commutes, Weekend Getaways
Key Features Compact eBike, Dual-Battery Setup, High Torque, Comfort, Power, Adaptability

Payment & Security

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  • Dual Removable Batteries for Extended Range

    The BK6S PRO folding electric bike is equipped with two removable lithium-ion batteries—one integrated into the frame and another mounted on the rear rack. Together, they offer up to 150 km of range, allowing you to go further with confidence. Conveniently detachable for flexible indoor charging.

  • Powerful 750W Motor with Shimano 7-Speed Gearing

    Tackle city streets or off-road trails with ease. The 750W high-torque motor delivers smooth, responsive acceleration, while the Shimano 7-speed transmission ensures precise control over varying terrains—perfect for both performance and leisure rides.

  • Front Suspension for a Smoother Ride

    The front fork suspension system absorbs shocks and vibrations, enhancing comfort and control whether you're commuting through city streets or exploring trails on your all-terrain eBike.

  • Smart & Weatherproof LCD Display

    Stay fully informed on every ride with the intuitive LCD screen. Monitor your speed, battery level, trip distance, and pedal-assist mode in real-time—crucial for optimizing your electric bike experience in any setting.

  • Integrated Rear Safety Light

    Ride with confidence even after dark thanks to the vivid red rear light. Frame-mounted for extra durability, it offers maximum visibility and safety during nighttime or low-light rides.

  • 20×4.0" Kenda Fat Tires for All-Terrain Adventure

    The KOOLUX BK6S PRO features 20x4.0 inch Kenda fat tires that deliver exceptional grip and stability. Whether you're tackling sandy paths, snow, gravel, or city roads, these puncture-resistant tires keep your ride smooth and secure.

  • StVZO-Certified Front Headlight

    Navigate night rides with peace of mind. The bright, StVZO-certified front headlight ensures optimal road visibility, meeting European safety standards and elevating nighttime riding safety.

  • Rear Rack & Full Fenders for Practical Comfort

    A robust rear rack and sleek backseat setup combine style with utility. With full fenders in place, the BK6S PRO keeps you clean and dry—making it perfect for daily commutes and casual outings alike.

Product comparison

A table comparing the facets of 3 products
Facet
BK6S PRO High-end version Folding Ebike
View details
KOOLUX KL6S Folding Ebike 48V 15.6Ah Lithium-ion UK Stock
View details
BK6S 4.0 Folding Ebike
View details
Price
Price
€1.249,00
€999,00
€899,00
Battery
Battery
48V 13+10.4Ah
48V 15.6Ah 748.8Wh
48V 13Ah 624Wh
Range
Range
80-150 km
70-120km
45-90 km
Frame
Frame
Iron
Aluminum Alloy
Aluminum Alloy
Tires
Tires
20*4.0 inch
20*4 inch Kenda Tires
20*4.0 inch
Suspension
Suspension
Front Fork Suspension
Front Fork Suspension
Front Fork Suspension
Brakes
Brakes
Mechanical Brakes
Hydraulic Brakes
Mechanical Brakes