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Hot Sale 2026 B2B Wholesale KOOLUX BK6S Step-Through 250W for EU Electric Bike All-Terrain Lithium Battery Rear Hub Motor 500W
Hot Sale 2026 B2B Wholesale KOOLUX BK6S Step-Through 250W for EU Electric Bike All-Terrain Lithium Battery Rear Hub Motor 500W
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SPECIFICATIONS
Battery: 48V 13AH
Battery Capacity: 13 ah,13AH
Battery Position: In Frame
Braking System: Disc Brake
Brand Name: KOOLUX
Charging Time: >3 hours
Feature: Foldable
Frame Material: Carbon Steel
Gears: 7 Speed
Max Speed: 30-40km
Model Number: BK6S
Motor position: Rear Hub Motor
Place of Origin: Guangdong, China
Power Source: Lithium Battery
Power Supply: Lithium Battery
Range per Power: > 60 km
Style: Standard
Tire Type: TUBELESS
Tire Width: 20*4"
Torque: 30-50 Nm
Voltage: 48 V
Watt-Hour: 748WH
Wheel Size: 20"
motor: Brushless




Model Number |
BK6S 500W |
Tire Style |
Pneumatic Tires |
Type |
Folding Ebike |
Maximum Load |
120kg |
Motor Rated Power |
250/500W |
Motor Type |
Integrated wheel Brushless Motor |
Gears |
7 gears |
Expanded Size |
182*60*110 cm |
Battery Voltage& Capacity |
48V 13Ah |
Foldable Size |
93*55*76 cm |
Mileage Range |
45-90km |
Package Size |
33.2/40kg |
Charging Time |
6.5-7h |
Net/Gross Weight |
25° |
Frame Material |
Steel |
Max Climbing limit |
IP54 |
Wheel Size |
20*4 |
Waterproof Grade |
- |
Max Speed |
32km/h |
Display |
black, sliver |
Braking System |
Front & Rear Disc Brake |
Color |
Black |




Materials
Materials
Shipping & Returns
Shipping & Returns
Billion Store
Thank you for shopping with us!
Processing Time
Orders are processed within 2–5 business days (excluding weekends and holidays).
Once your order has been dispatched, you will receive a tracking number by email.
Delivery Times
United Kingdom 🇬🇧
Items shipped from our UK warehouse: 2–7 business days
Items shipped from our international warehouses (e.g., China): 10–20 business days
Europe 🇪🇺
Estimated Delivery: 10–15 business days
Worldwide
Estimated Delivery: 10–20 business days
Returns & Refunds Policy
We want you to love your purchase! If for any reason you are not fully satisfied, we’ve made our returns process simple and straightforward.
Returns
You may return items within 14 days of delivery.
Items must be unused, in their original packaging, and in the same condition received.
A receipt or proof of purchase is required.
Exchanges
Exchanges are only available for items that are defective or damaged.
To request an exchange, please contact us at ctbillion@yahoo.com.
Refunds
Once we receive and inspect your return, we’ll notify you by email.
If approved, a refund will be issued to your original payment method.
Please allow 5–10 business days for the refund to appear.
Return Shipping
Customers are responsible for return shipping costs.
EU Customers: You have the right to cancel or return your order within 14 days for any reason and without justification (EU cooling-off period).
Contact Us
For returns, exchanges, or questions, please email us at: ctbillion@yahoo.com.
Additional Information
Delivery times are estimates and may vary depending on your location and local postal services.
International shipments may be subject to customs delays.
Customers are responsible for providing accurate shipping details at checkout.
For any questions about your order, please contact us at: ctbillion@yahoo.com
Dimensions
Dimensions
Care Instructions
Care Instructions
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