KOOLUX BK5S Folding E-Bike – 250 W Hub Motor (≈350 W Peak), 25 km/h (≈15.5 mph) Legal Speed (Unlockable to ~32 km/h/20 mph), 36 V 10.4 Ah Battery, Up to 70 km (43 mi) Range, 16″ × 3″ Tires
KOOLUX BK5S Foldable Electric Bike – Compact, Practical & Everyday Convenience
The KOOLUX BK5S is a lightweight foldable electric bike designed for riders who need portability, efficiency, and everyday reliability. Perfect for city commutes, last-mile connections, or casual weekend rides, the BK5S combines smooth performance with a space-saving design that fits seamlessly into modern urban life.
Powered by a 250W brushless hub motor (≈350W peak), the BK5S provides quick acceleration and steady handling. Its 36V 10.4Ah removable lithium-ion battery delivers up to 40 km (25 miles) per charge, making it ideal for short-to-medium daily journeys. With a top speed of 25 km/h (15.5 mph, EU legal), it’s road-compliant and efficient for city travel.
Built with a durable steel frame and 16-inch pneumatic tires, the BK5S offers stability while remaining easy to fold, carry, or store at home, in the office, or in the car. The simple 3-speed gear system adapts to different terrains, while the compact LED display shows speed, battery level, and assist mode at a glance.
Safety features include front and rear disc brakes for responsive stopping and integrated LED lights for improved visibility at night. Designed with convenience in mind, the BK5S is the ultimate portable city e-bike.
Key Features
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Motor: 250W brushless hub motor (≈350W peak)
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Battery: 36V 10.4Ah lithium-ion, up to 40 km (25 mi) range
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Top Speed: 25 km/h (15.5 mph) EU-legal
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Drive System: 3-speed gearing
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Riding Modes: Pedal assist, pure electric (optional throttle), and bicycle mode
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Frame: Foldable steel frame for portability
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Tires: 16″ × 2.125″ pneumatic tires
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Brakes: Front & rear disc brakes
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Display: LED display showing speed, battery, and assist level
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Lights: Integrated front and rear LED lights
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Climbing Ability: Up to 25° inclines
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Charging Time: 4–6 hours
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Max Load: 120 kg (265 lbs)
What’s in the Box
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1 × KOOLUX BK5S Electric Bike
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1 × 36V 10.4Ah Battery
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1 × Battery Charger
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1 × User Manual
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1 × Warranty Card
The KOOLUX BK5S is the smart choice for riders who want a compact, reliable, and portable e-bike. Whether you’re commuting to work, running errands, or exploring your city, it delivers convenience, safety, and style in one sleek design.
- Color:
- Black
Pairs well with
Delivery in 2 to 4 working days
Hassle-Free Returns within 30 Days
2-Year Warranty Coverage
Trusted, Award-Winning Support Team
What’s Included
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Product Specifications
Brand: PIXAR®
Type: Cruiser Electric Bike
Pedal Assist Range: 120+ km / 75+ miles
Electric-Only Range: 58 km / 36 miles
Top Speed: 25 km/h / 15.5 mph (EU legal)
Dimensions: 183 × 66 × 104 cm / 72 × 26 × 41 in
Max Load Capacity: 250 kg / 550 lbs
Net Weight: 29 kg / 64 lbs
Motor: 250 W peak rear hub brushless motor
Max Torque: 45 N·m / 33 lb-ft
Maximum Output: 48 V 23 A with temperature protection
Battery: Samsung 36 V 12.8 Ah
IP Rating: IPX6 waterproof, CE-certified
Battery Weight: 3.5 kg / 7.7 lbs
Charging Time: ~4–5 hours
Front Suspension: Aluminum adjustable shocks, 100 mm travel / 4 in
Handlebar: Riser; 104 mm grip length / 4 in; 66 cm total width / 26 in
Pedals: 9/16” with reflectors
Chain: 1/2” × 3/32”, 118 links, 21-speed indexing
Crankset: 170 mm cranks / 6.7 in with 48T chainring
Display: LCD with USB charging port
PAS Levels: 0–5
Throttle: Half-twist, optional thumb throttle
Sensor: Speed sensor
Drivetrain: Shimano 7-speed indexing (14–28T), rear derailleur
Charger: UL-certified 2 A smart charger
Rims: Alloy 26” with 13G, 36H spokes
Tires: CST 26” × 2” pneumatic, 45 psi
Brakes: Front & rear mechanical disc brakes, 180 mm rotors / 7 in
Kickstand: Heavy-duty aluminum
Specifications may vary depending on terrain, rider weight, and usage conditions.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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Waterproof IP65
350 Watt Motor
Unlockable Speed
10.5Ah Battery
Cruise Control
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Weight | 25 kgs (45 lbs) |
Payload Capacity | 120 kgs (265 lbs) |
Top Speed | 120 kgs (265 lbs) |
Range | 120 kgs (265 lbs) |
SPECIFICATIONS
| Specs | Details |
|---|---|
| Motor | 250W brushless hub (≈350W peak), ~50 Nm torque |
| Battery | 36V 10.4Ah lithium-ion (≈374 Wh), removable |
| Top Speed | 25 km/h (15.5 mph) road-legal; unlockable to ~32 km/h (20 mph) |
| Range | 35–50 km (22–31 mi) pure electric / up to 70 km (43 mi) pedal assist |
| Frame | Q195 carbon structural steel, foldable |
| Front Fork | Rigid (no suspension) |
| Drive System | 3-speed gearing |
| Tires | 16″ × 2.125″ pneumatic |
| Brakes | Front & rear mechanical disc brakes |
| Display | Multifunction LCD (speed, battery, mode) |
| Lights | Integrated front & rear LED |
| Max Load | 120 kg (265 lbs) |
| Climbing Ability | Up to 25° |
| Charging Time | 5–6 hours |
| Water Resistance | IP54 (splash-resistant) |
| Unfolded Size | 139 × 53 × 104 cm (54.7 × 20.9 × 40.9 in) |
| Folded Size | ≈86 × 50 × 68 cm (≈34 × 20 × 27 in) |
| Weight (Net / Gross) | 24.0 kg / 26.5 kg (52.9 lbs / 58.4 lbs) |
*Actual performance varies with rider weight, terrain, temperature, and riding mode.
WHAT'S IN THE BOX?
| KOOLUX BK5S | × 1 |
|---|---|
| Manual | × 1 |
| Bicycle Pump | × 1 |
| Lock | × 1 |
| Battery Charger | × 1 |
| Installation Tools | × 1 |
| Keys | × 2 |
Note: Charger and User Manual/Warranty Card are typically included based on standard packaging and may not be explicitly listed.