1. Product Overview
The Supfine 4-in-1 Convertible Tricycle is designed to adapt to your child's growth from 9 months to approximately 5 years. This versatile tricycle transitions through different stages, offering comfort, safety, and ease of use for both children and parents.
Key Features:
- 4-in-1 Multifunction: Adapts from a push tricycle for infants to an independent tricycle for toddlers. The seat can be rotated forward or backward using the CLICK & TWIST function.
- Ergonomic Design: Modular construction allows customization to the child's capabilities. Features a soft, comfortable seat and puncture-proof tires for a smooth ride.
- Safety Features: Equipped with a 5-point safety harness, a central safety bar, a large 3-part adjustable canopy, a front wheel mudguard, and two rear wheel brakes.
- Durable & Maintenance-Free: Puncture-proof tires require no inflation, suitable for various terrains. Includes a rear storage basket for convenience.
- Adjustable Push Handle: The telescopic push handle can be freely raised and lowered, allowing parents to find a comfortable height for steering.
- Retractable Pedals: Adjustable retractable pedals allow the child to rest their feet or pedal independently as they grow.

Image: The Supfine 4-in-1 Convertible Tricycle, fully assembled, showcasing its design and features.
2. Safety Information
Your child's safety is paramount. Please read and follow all safety instructions carefully before using the tricycle.
- Always ensure the 5-point safety harness is securely fastened when the child is in the seat.
- Never leave a child unattended on the tricycle. Adult supervision is always required.
- Ensure all locking mechanisms, such as the safety bar and brakes, are engaged when necessary.
- Regularly check all screws, bolts, and connections to ensure they are tight and secure.
- Do not use the tricycle on uneven terrain, near stairs, or on public roads.
- The tricycle is designed for children aged 9 months to 5 years. Do not exceed the recommended age or weight limits.
- Keep children's fingers and clothing away from moving parts.

Image: A parent safely pushing a child in the Supfine tricycle, highlighting the importance of supervision.
3. Assembly Instructions
Assembly is required for this product. Please follow these general steps. Refer to the detailed diagrams in your product packaging for specific component identification.
- Unpack Components: Carefully remove all parts from the packaging and verify against the parts list.
- Attach Rear Wheels: Secure the rear wheels to the main frame, ensuring they are firmly locked in place.
- Install Front Wheel and Fork: Attach the front wheel to the fork, then insert the fork assembly into the main frame.
- Mount Handlebars: Slide the handlebars onto the front fork stem and tighten securely.
- Assemble Seat: Attach the seat unit to the main frame. Ensure the CLICK & TWIST mechanism is functional for seat rotation.
- Install Push Handle: Insert the telescopic push handle into the designated slot at the rear of the tricycle. Adjust to desired height.
- Attach Sunshade: Mount the 3-part adjustable sunshade to the seat unit.
- Add Accessories: Attach the front basket and rear storage basket.
- Final Checks: Before first use, ensure all connections are tight, wheels spin freely, and safety features (harness, brakes) are operational.

Image: Dimensions of the tricycle, useful for understanding component sizes during assembly.
4. Operating Instructions
4.1 Adjusting the Seat
The seat features a CLICK & TWIST function, allowing it to face forward or backward. To adjust, locate the release mechanism (usually a button or lever under the seat), press it, and rotate the seat to the desired orientation until it clicks securely into place.
4.2 Using the Push Handle
The telescopic push handle allows parents to steer and control the tricycle. To adjust its height, locate the adjustment buttons or levers on the handle, press them, and slide the handle up or down. Release the buttons to lock it at the desired height. The handle also controls the front wheel's direction.
4.3 Engaging/Disengaging Freewheel
The automatic freewheel system allows the child to pedal without affecting the tricycle's speed when being pushed by a parent. To engage or disengage, refer to the mechanism on the front wheel hub. This typically involves pushing a button or sliding a collar.
4.4 Using the Brakes
The tricycle is equipped with two brakes on the rear wheels. To engage the brakes, press down on the brake levers located near the rear wheels. Ensure both brakes are fully engaged when parking the tricycle to prevent accidental movement.

Image: Detail of the rear wheel brake, showing its engagement mechanism.
4.5 Adjusting the Sunshade
The 3-part canopy can be adjusted to provide optimal sun protection. Simply extend or retract the canopy sections as needed. It can also be folded completely when not in use.

Image: The adjustable sunshade, demonstrating its three positions for varying sun protection.
4.6 Using Retractable Pedals
For younger children who cannot yet pedal, the footrests can be extended. As the child grows and is ready to pedal, the footrests can be retracted, allowing access to the pedals. To retract or extend, locate the mechanism near the front wheel or frame.

Image: Detail of the retractable pedal, showing its design for foot support.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your Supfine tricycle.
- Cleaning: Wipe down the tricycle regularly with a damp cloth and mild soap. Avoid harsh chemicals or abrasive cleaners. Dry thoroughly after cleaning.
- Inspections: Periodically check all nuts, bolts, and screws for tightness. Tighten any loose fasteners.
- Wheel Check: Although the tires are puncture-proof, inspect them for any signs of wear or damage. Ensure wheels spin freely.
- Harness & Seat: Check the safety harness for fraying or damage. Ensure the seat rotation mechanism operates smoothly.
- Storage: Store the tricycle in a dry, cool place away from direct sunlight and extreme temperatures to prevent material degradation.
6. Troubleshooting
If you encounter any issues with your tricycle, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Tricycle difficult to steer with push handle. | Loose connection in steering mechanism or push handle not fully engaged. | Check and tighten all connections related to the push handle and front wheel. Ensure the push handle is fully inserted and locked. |
| Seat does not rotate smoothly. | Debris in the rotation mechanism or mechanism not fully disengaged. | Clean the area around the seat rotation mechanism. Ensure the release button/lever is fully pressed when attempting to rotate. |
| Brakes are not effective. | Brake pads worn or mechanism loose. | Inspect brake pads for wear. Ensure the brake levers are fully engaging the wheels. Tighten any loose components. |
| Pedals not engaging or retracting properly. | Mechanism jammed or misaligned. | Check for any obstructions. Ensure the pedal mechanism is clean and lubricated if necessary. |
7. Specifications
| Specification | Detail |
|---|---|
| Model Number | SP-FINE-SLC |
| Product Dimensions (L x W x H) | 75 cm x 46 cm x 106 cm (29.5 x 18.1 x 41.7 inches) |
| Item Weight | 7.5 Kilograms (16.5 lbs) |
| Recommended Age Range | 9 months to 5 years |
| Material | Plastic |
| Assembly Required | Yes |
| Included Components | Foldable Sunshade, Wheels, Rotatable Seat, 5-point Safety Harness |
8. Warranty and Support
Specific warranty information for the Supfine 4-in-1 Convertible Tricycle is not provided in this manual. For details regarding warranty coverage, returns, or technical support, please refer to the documentation included with your purchase or contact Supfine customer service directly.
When contacting support, please have your model number (SP-FINE-SLC) and purchase date available.





