KOOLUX BK6S
£750.00
KOOLUX BK6S: Powerful Folding Fat Tyre Electric Bike for All-Terrain Adventures
The KOOLUX BK6S is a versatile folding electric bike that delivers exceptional power, impressive range, and genuine all-terrain capability in a compact, portable package. Featuring a robust 250W motor with 60Nm torque, high-capacity 48V 15Ah removable battery, and professional 20" x 4.0" fat tyres with puncture-proof technology, this e-bike conquers both urban streets and challenging off-road terrain with confidence. With its lightweight aluminium folding frame, K-Code certified lighting, and Shimano 7-speed transmission, the BK6S is perfect for commuters, adventure seekers, and riders who refuse to compromise between performance and portability.
Key Features
- Powerful Motor Performance: The reliable 250W brushless rear hub motor delivers an impressive 60Nm of torque, providing strong acceleration and effortless handling of steep inclines up to 25 degrees. Fully UK road legal with a top speed of 25 km/h (15.5 mph) in pedal assist mode, the motor can be unlocked for higher speeds up to 45 km/h for use on private land.
- High-Capacity Battery: Equipped with a powerful 48V 15Ah lithium-ion battery, the BK6S offers an exceptional range of up to 70 km (56 miles) on a single charge when using pedal assist wisely. The removable battery design allows convenient charging either on the bike or separately, perfect for riders living upstairs or without ground-floor access.
- Professional Fat Tyres with Puncture-Proof Technology: The robust 20" x 4.0" fat tyres now feature advanced puncture-proof technology for a worry-free riding experience. Specially designed to withstand sharp objects, these professional-grade tyres provide unparalleled durability whilst delivering superior traction, shock absorption, and stability on sand, snow, gravel, wet pavement, and city streets.
- Three Riding Modes: Choose between pedal assist mode for efficient riding with motor support, pure electric mode using the optional throttle grip for effortless cruising (for use on private land), or classic pedal mode with the Shimano 7-speed transmission for traditional cycling exercise. This versatility makes the BK6S suitable for both leisure riding and fitness activities.
- Shimano 7-Speed Transmission: The reliable Shimano 7-speed gear system provides smooth, precise shifts and optimal gear selection for any terrain. Experience unique acceleration by combining mechanical gears with electric assist for maximum efficiency and exhilarating performance.
- Advanced Front Suspension: The quality aluminium front fork with shock absorption effectively cushions vibrations on uneven roads, significantly improving riding comfort and control. Combined with seat shock absorbers and high-volume low-pressure tyres, the suspension system ensures a smooth, comfortable ride even on challenging mountain roads.
- Quick-Folding Aluminium Frame: Crafted with a lightweight aluminium alloy frame, the BK6S strikes the perfect balance between strength and agility. The foldable design enhances portability and storage convenience, making it ideal for people with limited storage space, multi-modal commuting, or transporting in car boots. Typical weight is approximately 25.5-27 kg, maintaining excellent portability.
- K-Code Certified LED Lighting: The bright LED front light illuminates the road ahead and improves visibility in low light or darkness, helping you see better whilst ensuring you are seen by others. This front light is K-Code certified and complies with UK/EU standards (StVZO), providing reliable performance and safety. Frame-mounted rear light offers maximum visibility from behind.
- Dual Disc Brakes: Mechanical disc brakes on both front and rear wheels provide strong, consistent stopping power in all weather conditions. This reliable braking system ensures safety and control whether riding on roads or trails.
- User-Friendly LCD Display: The easy-to-read LCD screen displays essential information including speed, battery level, distance travelled, and assist mode in real-time. Monitor your journey at a glance whilst keeping focus on the road ahead.
- Comfortable Saddle Design: The hollow seat design ensures optimal comfort whilst being breathable and preventing water accumulation, ensuring a pleasant ride in all weather conditions.
- Robust Load Capacity: The strong frame supports a maximum load of 120 kg, making the BK6S suitable for various rider sizes and capable of carrying additional gear, panniers, or shopping.
- Ready to Ride: The bike comes with reflectors, headlights, and all essential features prioritising safety and functionality for every ride. Arrives mostly assembled for quick setup and immediate riding.
Perfect For
- Urban Commuters: Navigate city streets efficiently with responsive electric assistance and the ability to fold quickly for storage or combining with public transport. The impressive 70km range ensures you can complete multi-day commutes on a single charge.
- All-Terrain Explorers: The BK6S isn't just a city bike. Those fat 20" x 4.0" tyres are designed to handle more than smooth tarmac. Gravel tracks, canal paths, forest trails, even sand or snow—this bike doesn't flinch. The ride feels cushy and stable, even when terrain gets rough.
- Budget-Conscious Performance Seekers: The BK6S delivers a specification list you'd usually only find on bikes double the price, including decent range, genuine power, fat tyres, suspension fork, rack compatibility, lights, and mudguards—actually ready to ride out of the box without spending extra hundreds to make it commuter-friendly.
- Multi-Modal Travellers: Perfect for riders who combine cycling with train, bus, or car travel. The folding frame makes this bike surprisingly portable for something with chunky 4-inch tyres. Pop it in the boot of your car, stash it in a hallway, or take it on transport.
- Space-Conscious Riders: Ideal for those living in flats, apartments, or homes with limited storage space. The foldable design allows convenient storage without sacrificing performance or range. You're not wrestling with a full-sized bike when you just want to get to work or run errands.
- Weekend Adventurers: Explore what's inaccessible to others in a safe, reliable, and fun way. The folding frame makes it convenient to take to campsites, picnic sites, or weekend getaway destinations.
- First-Time E-Bike Riders: The accessible design, intuitive controls, versatile riding modes, and excellent value make the BK6S an outstanding introduction to electric cycling.
Puncture-Proof Technology: Ride with Confidence
The advanced puncture-proof technology integrated into the 20" x 4.0" fat tyres represents a significant advancement in reliability. Enjoy worry-free riding as these professionally engineered tyres are specially designed to withstand sharp objects whilst providing a smoother, more reliable ride on any terrain. This technology reduces maintenance concerns and ensures consistent performance.
Exceptional Value for Money
The KOOLUX BK6S punches well above its weight in terms of value. Real power, genuine range, fat tyres, suspension, safety lighting, and folding convenience—all at a price point that makes quality e-biking accessible. This is a folding fat-tyre electric bike that delivers performance typically reserved for premium models without the premium price tag.
K-Code Certified Safety
The K-Code certified LED front lighting ensures the BK6S meets strict UK/EU safety standards (StVZO). This premium lighting system provides powerful, reliable illumination whilst ensuring compliance with regulations, giving you confidence during night-time riding.
Versatile Riding Experience
The BK6S offers flexibility to choose between assisted and unassisted riding. Activate electric assistance for a relaxed commute, use pure electric mode on private land for effortless cruising, or use the bike without motor support to intensify your workout. This versatility adapts to your needs, preferences, and riding situations.
Built for Adventure, Designed for Convenience
The KOOLUX BK6S represents the perfect fusion of power, capability, and practicality. Whether conquering lengthy commutes, exploring rugged terrain, running daily errands, or enjoying weekend adventures, this folding fat-tyre electric bike delivers the performance and versatility you need in a package that folds quickly for easy storage and transport. Navigate beaches, trails, snow-covered paths, city streets, and everything in between with confidence, knowing the BK6S is built to handle it all.
UK Road Legal Compliance
The BK6S is fully UK road legal as an Electrically Assisted Pedal Cycle (EAPC) when used in pedal assist mode at 25 km/h with the 250W motor. The optional throttle function is provided for use on private land only, allowing riders to enjoy pure electric mode during off-road adventures whilst maintaining legal compliance on public roads.
Experience the KOOLUX BK6S difference—powerful performance, genuine all-terrain capability, impressive range, and folding convenience, all in one exceptional electric bike that's ready for whatever adventure you choose.
At Evara E-Bikes UK, we focus on getting your new e-bike to you safely and as quickly as possible.
Order Processing
Once your order is successfully placed, our team prepares your items for dispatch. Most orders are processed and shipped within 1–3 working days, depending on stock availability.
UK Mainland Delivery
We offer reliable delivery across the UK Mainland. Orders shipped to eligible UK addresses are typically delivered within 2–5 working days after dispatch. You’ll receive confirmation emails at each key stage — order received, dispatched, and out for delivery — including tracking details so you can follow your delivery in real time.
Delivery Charges
Shipping costs are calculated at checkout based on your location and the type of product ordered. Larger items like e-bikes may have a different delivery rate to smaller accessories.
Signature Requirement
All deliveries must be signed for by an adult at the delivery address to ensure safe receipt of your e-bike.
Shipping Restrictions
Due to shipping regulations for high-powered batteries, some remote UK regions (e.g., certain Scottish Highlands, islands, and offshore locations) may incur additional delivery charges or have restricted service. If delivery to your address isn’t possible via our standard courier network, our support team will contact you.
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