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KOOLUX BK6S 750W folding e-bike grey
Electric Bikes

KOOLUX BK6S 4.0 750W Folding E-Bike

£739
£889 Save 17%
In Stock (12 available)

20" high-end folding e-bike with 750W motor, 45-90 km range, disc brakes and premium build.

Motor Power: 750W Battery: 48V 13Ah Lithium-ion Top Speed: 25 km/h (unlock 45 km/h) Range: 45-90 km
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SKU: KLX-BK6S-BLK KOOLUX

The KOOLUX BK6S 4.0 is for riders who refuse to compromise. With a serious 750W motor, fast-charging battery and a folding design that doesn't sacrifice performance, it's the e-bike that powers through UK terrain.



Power Meets Portability



  • 750W brushless motor — class-leading power for any hill or headwind.

  • 48V 13Ah lithium battery — proven reliability from a trusted cell type.

  • Front & rear disc brakes — responsive, confident braking even at speed.

  • Folding design (93 × 55 × 76 cm) — powerful AND portable for train commutes.

  • 20" × 4.0" chunky tyres — grip on gravel, grass, snow-covered paths.

  • 25° climbing ability — no hill is too steep.



Ideal for


Off-road adventurers, e-MTB enthusiasts, delivery riders and anyone who wants maximum power in a foldable form factor.



High-end performance · Free UK delivery · 2-year warranty · Ships 1-5 days.

Motor Power750W
Battery48V 13Ah Lithium-ion
Top Speed25 km/h (unlock 45 km/h)
Range45-90 km
Tyre Size20 × 4.0"
Brake SystemFront & Rear Disc Brake
Frame MaterialAluminum Alloy
Max Load120 kg
Weight34.2 kg
Charging Time6.5-7 hours
Folded Size93 × 55 × 76 cm
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