Product Description


The TDN-03 RX20 UrbanTrail Folding E-Bike by BOXU JOYLAX is engineered for modern riders who demand versatility, portability, and performance. Built with a high-strength aluminum alloy frame and 20*4.0" fat tires, it delivers stable traction on city streets, gravel paths, and light off-road terrain.
Equipped with a 48V rear brushless hub motor (500W/750W optional) and long-lasting lithium battery (10.4Ah/15Ah options), this e-bike provides a pure electric range of 35-60km and pedal-assist range up to 110km, supporting a max speed of 25-45km/h. The foldable design allows for easy storage in small spaces or vehicle trunks, making it perfect for daily commuting, weekend adventures, and last-mile delivery.
With front and rear disc brakes for reliable stopping power, a 7-speed gear system, and adjustable seat height, the RX20 ensures a safe, comfortable ride for riders of all sizes. It’s a cost-effective, durable solution for B2B buyers looking to expand their electric bicycle product line with BOXU JOYLAX quality.
✨ Product Highlights


Foldable & Portable: Compact foldable design for easy storage and transport, ideal for urban living and vehicle loading.
All-Terrain Fat Tires: 20*4.0" CST fat tires provide superior grip and stability on paved roads, gravel, and light off-road trails.
Powerful & Efficient: 48V rear hub motor (500W/750W) paired with 10.4Ah/15Ah lithium battery, offering 35-60km pure electric range and up to 110km pedal-assist range.
Durable Construction: Lightweight aluminum alloy frame ensures long-term durability while keeping the bike lightweight for easy handling.
Safe & Reliable: Front and rear disc brakes deliver precise stopping power, paired with a 7-speed gear system for smooth riding across varying terrain.
Customizable Options: Available in custom colors and battery configurations to meet diverse market demands, backed by BOXU JOYLAX.


Product Specifications
| Category | Details | Category | Details |
| Model Number | TDN-03 RX20 | Battery Capacity | 10.4Ah / 15Ah (Optional) |
| Frame Material | Aluminum Alloy | Battery Voltage | 48V (54V) |
| Wheel Size | 20" | Charger Voltage | 100-240V, 2A |
| Tire Size | 20" x 4.0" Fat Tire | Charging Time | 3-5 Hours |
| Motor Type | Rear Brushless Hub Motor | Max Speed | 25-45km/h (Configurable) |
| Motor Power | 500W / 750W (Optional) | Pure Electric Range | 35-60km |
| Gears | 7-Speed | Pedal-Assist Range | 45-110km |
| Braking System | Front & Rear Disc Brake | Gradeability | 30° |
| Battery Position | Down Tube | Torque | 50-60 Nm |
| Place of Origin | Jiangsu, China | Brand Name | BOXU JOYLAX |
| Package Size | 150×32×78 cm | Gross Weight | 25kg |

Why Choose BOXU JOYLAX
Reliable Manufacturing
We are BOXU JOYLAX, a professional e-bike manufacturer based in Jiangsu, China, with years of experience in producing high-quality folding electric bicycles. Our products undergo strict quality control to ensure durability and performance for global markets.
Flexible B2B Solutions
We offer customizable options (colors, battery, motor power) to meet your brand and market needs, with flexible MOQs and efficient delivery times. Our packaging is optimized for safe international shipping, reducing logistics risks.
Global Market Compliance
Our e-bikes meet international safety and certification standards (CE, FCC, etc.), making them suitable for sale in Europe, North America, and other key markets. We provide full technical documentation and after-sales support for B2B clients.
Competitive Advantage
By combining premium components (aluminum frame, CST tires, reliable battery systems) with a cost-effective production model, BOXU JOYLAX delivers high-value e-bikes that help our B2B partners maximize profit margins while satisfying end-users.