KOOLUX BK6S 4.0 48V 13AH Foldable Electric Bike
Description
BK6S 4.0 750W High-End Electric Bike – Folding Model with Fat Tires
The BK6S 4.0 is the high-end version of the BK6S series, equipped with a 750W motor and 20x4.0 inch fat tires for added stability on varied terrain. With a folding frame and front-rear disc brakes, the BK6S 4.0 offers a balance of power, comfort and portability for riders who want more than a basic model.
The High-End version differs from the standard BK6S through increased motor power and fat tires, which provide a larger contact surface with the ground. This combination improves traction on sand, gravel or light snow compared to narrower standard tires.
Technical Specifications – BK6S 4.0 Electric Bike
Motor and Performance
Battery and Charging
Build and Equipment
Fat tires and the advantage on mixed terrain
The 4.0 inch tire width increases contact surface with the ground, offering superior traction and stability on soft or uneven surfaces compared to standard 1.95–2.0 inch tires. The lower recommended air pressure absorbs bumps, reducing fatigue on long routes.
The 750W motor and acceleration response
The 750W power output offers a firm response when starting off and on moderate climbs, strong enough for riders carrying extra gear or frequently riding on uneven routes.
Who This Electric Bike Is Best Suited For
Mixed Terrain and Uneven Surfaces
Fat tires for traction on sand, gravel or light snow.
Riders Wanting Extra Power
750W motor for firm acceleration response and moderate climbs.
Comfort on Medium-Long Distances
Good bump absorption thanks to tire width.
