Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your VEVOR Bike Cargo Trailer. Please read this manual thoroughly before use to ensure safe and efficient operation. Retain this manual for future reference.
Safety Information
- Always ensure the trailer is securely attached to the bicycle before riding.
- Do not exceed the maximum load capacity of 160 lbs (72.5 kg).
- Distribute cargo evenly to maintain stability.
- Regularly check tire pressure and condition.
- Ensure all reflectors are clean and visible, especially during low-light conditions.
- This trailer is designed for cargo transport only. It is not suitable for transporting pets or children.
- Adjust your riding style to account for the added weight and length of the trailer.
- Avoid sharp turns or sudden braking when towing a loaded trailer.
Package Contents
Upon opening the package, verify that all components are present and undamaged.
- 1 x VEVOR Bike Cargo Trailer (Main Frame, Wheels, Hitch Arm)
- 1 x Universal Hitch Connector
- Assembly Toolkit (if included)

Image: The VEVOR Bike Cargo Trailer in its assembled state, showing the main frame, wheels, and hitch arm.
Setup and Assembly
Follow these steps to assemble your VEVOR Bike Cargo Trailer.
1. Unfolding the Trailer Frame
Carefully remove the trailer frame from its packaging. Unfold the main frame components until they lock into their open position. Ensure all locking mechanisms are engaged securely.

Image: Illustration showing the trailer in its compact folded state and its fully assembled, unfolded state, highlighting the quick-release mechanism for setup.
2. Attaching the Wheels
Insert the wheel axles into the designated slots on the trailer frame. Secure them using the provided quick-release pins or locking mechanisms. Ensure the wheels spin freely and are firmly attached.

Image: A close-up view demonstrating the attachment point for the trailer wheel to the main frame, showing the axle and securing mechanism.

Image: A detailed view of the 16-inch trailer wheel, featuring a prominent orange reflector for enhanced visibility.
3. Installing the Hitch Arm
Attach the hitch arm to the front of the trailer frame. Secure it with the appropriate fasteners. The hitch arm should be oriented correctly to connect to your bicycle's rear axle.

Image: A close-up of the trailer's hitch arm, showing its connection point to the main trailer body and the spring-loaded mechanism for attachment to a bicycle.
4. Attaching to Bicycle
The universal hitch connector attaches to the rear axle of your bicycle. Once the connector is installed on your bike, the trailer's hitch arm can be quickly attached and detached using its pin quick-release structure. Ensure a secure connection before each ride.

Image: The VEVOR Bike Cargo Trailer securely attached to the rear of a bicycle, ready for transport.
Operating Instructions
Loading Cargo
The trailer has a maximum load capacity of 160 lbs (72.5 kg). Distribute the weight evenly across the trailer bed to maintain balance and stability during transit. Secure all cargo with straps or netting to prevent shifting or falling out.

Image: The bike cargo trailer loaded with various items, demonstrating its capacity for transporting goods.
Compatibility
This trailer is compatible with bicycles having wheel sizes ranging from 22 to 28 inches. It can be used with recreational bikes, children's bikes, mountain bikes, and highway bikes.

Image: An illustration showing the VEVOR Bike Cargo Trailer attached to different types of bicycles, including MTB, City Bike, and Road Bike, highlighting its versatility.
Folding for Storage
For compact storage or transport, the trailer can be easily folded. Disengage the quick-release pins and collapse the frame as shown in the assembly section. Remove the wheels for an even more compact form.
Maintenance
- Tires: Regularly check tire pressure. The recommended pressure is typically indicated on the tire sidewall. Inspect tires for wear, punctures, or damage.
- Frame: Clean the carbon steel frame with a damp cloth. The powder-coated surface is designed for rust resistance, but regular cleaning helps maintain its condition.
- Hitch Mechanism: Ensure the hitch mechanism is clean and free of debris. Lubricate moving parts periodically to ensure smooth operation.
- Reflectors: Keep all reflectors clean and unobstructed for maximum visibility.
- Fasteners: Periodically check all bolts, nuts, and quick-release mechanisms to ensure they are tight and secure.

Image: A close-up view of the reinforced 16 x 1.75 inch double-lined inflatable rubber tire with an iron hub, designed for stable performance on various terrains.

Image: An illustration highlighting the one-piece molded carbon steel frame for stability and light weight, and its powder-coated surface for rust resistance, shown in a rainy environment.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Trailer wobbles or feels unstable. | Uneven cargo distribution, loose hitch connection, low tire pressure. | Redistribute cargo evenly. Ensure hitch is securely fastened. Check and inflate tires to recommended pressure. |
| Difficulty attaching/detaching hitch. | Debris in mechanism, misaligned components, lack of lubrication. | Clean the hitch mechanism. Ensure proper alignment. Apply a small amount of lubricant if necessary. |
| Wheels do not spin freely. | Axle not fully inserted, debris in axle area, damaged bearing. | Ensure axles are fully seated and secured. Clean any debris. Inspect bearings for damage; contact support if necessary. |
Specifications
| Feature | Detail |
|---|---|
| Item Model Number | CT903L |
| Mounting Position | Rear Axle |
| Max Load Capacity | 160 lbs / 72.5 kg |
| Frame Material | Carbon Steel, Round Tube (Size: Φ22.5 + Φ25.5 mm) |
| Transport Box Size | 28 x 20.3 x 11.8 inches / 710 x 515 x 300 mm |
| Compatible Bike Wheel Size | 22-28 inches / 558.8-711.2 mm |
| Material | Carbon Steel + PE |
| Product Weight | 28.66 lbs / 13 kg |
| Product Size (Trailer State) | 55.51 x 28.74 x 21.65 inches / 1410 x 730 x 550 mm |
| Product Size (Folded State) | 29.92 x 23.43 x 7.28 inches / 760 x 595 x 185 mm |
| Wheel Size | 16 x 1.75 inches |

Image: A graphic displaying key specifications and dimensions of the VEVOR Bike Cargo Trailer, including folded and unfolded sizes, and wheel details.
Warranty and Support
For warranty information or technical support, please refer to the VEVOR official website or contact their customer service directly. Keep your purchase receipt for any warranty claims.
Visit: www.vevor.com/support





