Koolux BK6S 3.0 Folding Electric Bike
SKU: W87891
SPEED15.5 Mph
RANGE28 Miles
MOTOR250W
BATTERY13Ah
CHARGING5 Hours
WEIGHT57 lbs
This Model Is Fully Compliant With UK Road Regulations
This bike is built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning it can be used on public roads and cycle paths without registration, tax, or a licence. Motor assistance is limited to 250W and cuts off at 15.5 mph (25 km/h).
See UK LegislationYour everyday folding companion
The Koolux BK6S 3.0 is built for riders who need a practical, space-saving electric bike without sacrificing everyday performance. With a lightweight aluminum alloy frame and compact folding design, it is perfect for city dwellers, apartment storage, or mixed-mode commuting. Powered by a reliable 36V 13Ah lithium-ion battery and paired with a Shimano 7-speed gear system, the BK6S 3.0 offers a smooth, energy-efficient ride with a range of up to 28 miles per charge. The 20×3.0 inch tires strike a great balance between grip and agility, making this a practical choice for daily riders looking for a versatile, space-saving solution.
Responsive power for city streets
Enjoy smooth acceleration and steady assistance from the 250W motor, which is fully compliant with UK road law for electric bikes. The motor pairs with a Shimano 7-speed derailleur, giving you the control to tackle gentle slopes or cruise along flat city streets with ease. Whether you are commuting to work or running errands, the BK6S 3.0 delivers a comfortable blend of power and control.
Long-lasting battery for extended rides
Go further on a single charge with the high-capacity 36V 13Ah lithium-ion battery. It provides a range of up to 28 miles, making it ideal for daily commutes and weekend adventures. The removable battery charges in about 5 hours, so you can easily top up at home or in the office.
Comfortable ride with front suspension
Stay comfortable on uneven roads thanks to the front fork suspension, which absorbs bumps and vibrations. The 20×3.0 inch fat tires add extra cushioning and grip, giving you a stable and confident ride on various surfaces. The upright riding position and ergonomic design help reduce fatigue on longer journeys.
Reliable stopping power in all conditions
Ride with confidence knowing the BK6S 3.0 is equipped with mechanical brakes that provide dependable stopping power. The brakes are easy to maintain and offer consistent performance, whether you are riding in dry or wet weather. The integrated rear safety light and StVZO-certified front headlight enhance visibility, keeping you safe on UK roads.
Clear display and intuitive controls
Keep track of your ride with the multifunctional LCD display, which shows key information such as speed, battery level, and distance travelled. The controls are easy to reach and simple to use, allowing you to adjust assistance levels on the go. This helps you manage your battery usage and ride more efficiently.
Practical features for daily life
The BK6S 3.0 comes with a rear cargo rack, perfect for carrying groceries or a backpack, and full fenders to keep you clean and dry in wet conditions. The folding frame makes it easy to store in small spaces or take on public transport. With a maximum load capacity of 265 lbs, it is built to handle your daily needs.
- BRAND
- KOOLUX
- CATEGORY
- Folding
- MOTOR POWER
- 250W
- RANGE
- 28 Miles
- SPEED
- 15.5 Mph
- BATTERY
- 13Ah
- WEIGHT
- 57 lbs
- CHARGING TIME
- 5 Hours
- BRAKE SYSTEM
- Mechanical Brakes
- FRAME MATERIAL
- Aluminum Alloy
- MAXIMUM LOAD
- 265 lbs
- INPUT VOLTAGE
- 36V
- TIRE SIZE
- 20 inch
- TORQUE
- N/A
Secure checkout and fast UK delivery on every order.
- Free standard UK delivery on most bikes — 2 to 7 business days
- Express delivery may be available on request
- Full tracking included with every order
- Pay securely with Visa, Mastercard, PayPal, Apple Pay, Google Pay, or Klarna
- 0% finance available through Klarna at checkout
Before you order:
- Delivery is to UK mainland addresses — some remote areas may have a small surcharge
- Most bikes arrive 85–90% pre-assembled and include basic tools for setup
- If you are unsure about sizing or specs, contact us before you buy
Full details at Payment & Shipping.
Simple and fair terms so you can buy with confidence.
- 30-day return window — if the bike is not right for you, send it back
- Ride it. It needs to come back clean, undamaged and complete, with the charger, tools and manual
- A refund or replacement is issued after we receive and check the return
Please note:
- For a change of mind we book the collection and deduct its cost from your refund, and we tell you the amount before we book it
- If we sent the wrong item or it arrived faulty, we cover return shipping in full
- All bikes include a 12-month manufacturer warranty as standard
Full details at Returns & Refunds and Warranty.
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