Specifications Breakdown

Model: KOOLUX BK6S Pro

Bike Type: Compact folding fat-tire electric bike

Colour: Black

Versions: 500W version, 750W version

Battery Setup: Dual battery

Battery Capacity: 48V 23.4Ah total

Dual Battery Split: 48V 13Ah + 10.4Ah rack battery

Wheel Size: 20-inch wheels

Tyres: 20 × 4.0-inch fat tyres

Gears: Shimano 7-speed gearing

Suspension: Front fork suspension

Frame Style: Folding frame

Maximum Load: 120 kg (265 lbs)  

500W Version

Motor Power: 500W

Top Speed: Up to 40 km/h (25 mph)

Range: Up to 80–150 km (50–93 miles)  


750W Version

Motor Power: 750W

Top Speed: Up to 50 km/h (31 mph)

Range: Up to 80–150 km (50–93 miles) 

What’s in the Box

1 × KOOLUX BK6S Pro Electric Bike

1 × Charger

1 × Tool kit

1 × User manual

FAQs

What is the difference between the 500W and 750W KOOLUX BK6S Pro?

The main difference is power and speed. The 500W version reaches up to 40 km/h, while the 750W version reaches up to 50 km/h. Both use the same dual-battery setup and 20 × 4.0-inch fat tyres.  

Does the KOOLUX BK6S Pro have a dual battery setup?

Yes, it uses a dual-battery setup with a total capacity of 48V 23.4Ah.

How far can the KOOLUX BK6S Pro go on one charge?

Both versions are shown with a range of up to 80–150 km (50–93 miles).  

What tyres does the KOOLUX BK6S Pro use?

It uses 20 × 4.0-inch fat tyres.  

Does the KOOLUX BK6S Pro fold?

Yes, it has a folding frame for easier storage and transport.  

Does the KOOLUX BK6S Pro have gears?

Yes, it comes with Shimano 7-speed gearing.  

Does the KOOLUX BK6S Pro have suspension?

Yes, it comes with front fork suspension.  

What is the maximum load of the KOOLUX BK6S Pro?

Up to 120 kg (265 lbs).  

Is the KOOLUX BK6S Pro good for commuting and everyday riding?

Yes, the folding frame, dual battery setup, fat tyres, and Shimano gearing make it a strong option for commuting and everyday riding.  

What colour does the KOOLUX BK6S Pro come in?

Black. 

The KOOLUX BK6S PRO

The Koolux BK6S PRO Folding Electric Bike is built for riders who want exceptional range, rugged stability, and the convenience of a compact folding design. Designed to handle both daily commuting and longer leisure rides, the BK6S PRO combines extended battery capacity with durable construction to create a versatile and dependable e-bike.

One of the standout features of the BK6S PRO is its dual-battery system, which delivers an impressive riding range of up to 150 km per charge under ideal conditions. This extended range allows riders to travel further between charges, making the bike ideal for longer commutes, countryside rides, and full-day adventures. The removable batteries can be conveniently charged at home, at work, or wherever a power outlet is available.

The bike is built around a strong aluminium alloy folding frame, allowing it to collapse quickly for easy storage or transport. This makes the BK6S PRO especially practical for apartment living, office storage, car travel, or mixed transport commuting while still maintaining the strength and stability needed for everyday riding.

For enhanced comfort and control, the BK6S PRO rides on 20″ fat tyres, which provide excellent grip and shock absorption across a variety of surfaces including city streets, gravel paths, and uneven terrain. The wider tyres help smooth out bumps and deliver a more stable riding experience, whether navigating busy urban roads or exploring countryside trails.

The Shimano 7-speed drivetrain allows riders to easily adjust gearing for different terrain and riding conditions, helping maintain efficient pedalling across flat roads, gentle climbs, and longer routes. Reliable disc brakes provide strong and consistent stopping performance, helping riders stay in control in a variety of weather and road conditions.

clear handlebar-mounted display keeps essential ride information visible at a glance, including battery level and assistance settings, while integrated lighting improves visibility when riding in low-light environments.

Combining dual-battery endurance, fat-tyre stability, and foldable convenience, the Koolux BK6S PRO Folding Electric Bike delivers a powerful and practical solution for riders who want an electric bike capable of handling everyday commuting as well as longer adventures.

KOOLUX

KOOLUX began when three young cycling enthusiasts took on a challenging 38-mile mountainous ride and found themselves walking their bikes up steep terrain in the dark, cold and exhausted. Determined to solve that struggle, they set out to design electric bikes to help riders keep going. After winning recognition in a campus tech competition, they formally founded the company under the name “KOOLUX” five years later. Today, the brand is known for bringing stylish, powerful, and accessible e-mobility solutions to riders around the world.