1. Important Safety Information
Please read this entire manual before assembling and using the UBRAVOO HM-618 6-in-1 Baby Tricycle. Failure to follow these instructions could result in serious injury to your child.
- Adult Supervision Required: Always supervise your child when they are using the tricycle. Never leave a child unattended.
- Age and Weight Limits: This tricycle is suitable for children aged 18-60 months and supports a maximum weight of 30 kg (66.14 lbs). Do not exceed these limits.
- Harness Use: Always secure your child with the 3-point safety harness. Ensure it is properly adjusted and fastened before each use.
- Brake System: Always engage the rear wheel brakes when stopping or parking the tricycle to prevent accidental movement.
- Terrain: Use on flat, even surfaces. Avoid steep inclines, stairs, or uneven terrain.
- Protective Gear: Ensure your child wears appropriate protective gear, such as a helmet, especially when transitioning to independent riding.
- Regular Checks: Periodically check all nuts, bolts, and fasteners to ensure they are tight and secure.
- Avoid Hazards: Keep children away from roads, motor vehicles, and swimming pools.
This product complies with ASTM F963-17 and EN71 safety standards.
2. Product Overview and Features
The UBRAVOO HM-618 is a versatile 6-in-1 baby tricycle designed to adapt to your child's growth and developmental stages, from infant to toddler.

Figure 2.1: The 6-in-1 functionality adapts to different age groups.
Key Features:
- 6-in-1 Adaptability: Transforms from an infant tricycle to a steering tricycle, learn-to-ride tricycle, and classic tricycle.
- 3-Point Safety Harness: Ensures your child's security.
- Removable Canopy: Provides sun protection and can be removed for older children.
- Durable Construction: Made with a carbon steel metal frame, supporting up to 30kg.
- Breathable Seat: Features knitted twill for ventilation.
- All-Terrain Wheels: Non-inflatable wheels suitable for various surfaces.
- Foldable Design: Telescopic folding handle for easy carrying and storage.
- Storage Basket: Large basket for essentials.
- Direction-Controlling Rod: Allows parents to steer the tricycle.
- Safe Brakes: Rear wheel double brakes for secure stopping.
- 360° Swivel Seat: Offers flexibility for child interaction.
- Foldable Footrest: Provides comfort for younger riders who cannot pedal.

Figure 2.2: Fully assembled UBRAVOO HM-618 Tricycle.
3. Assembly Instructions
The UBRAVOO HM-618 tricycle is designed for straightforward assembly. While specific step-by-step diagrams are not provided here, the general process involves attaching the main components.
- Unpack Components: Carefully remove all parts from the packaging and verify against the parts list (refer to your product packaging for a detailed list).
- Frame Assembly: Connect the main frame components securely.
- Wheel Attachment: Attach the front and rear wheels, ensuring they are firmly in place and rotate freely.
- Seat and Handlebar: Install the seat, handlebar, and any associated guardrails.
- Canopy and Push Rod: Attach the adjustable canopy and the parent push rod.
- Pedals and Footrest: Install the pedals and the foldable footrest.
- Final Checks: Before first use, ensure all connections are tight, the brakes function correctly, and the safety harness is securely installed.
If you encounter any difficulties during assembly, please refer to the detailed assembly guide included in your product packaging or contact customer support.
4. Operating Instructions
The UBRAVOO HM-618 tricycle offers multiple configurations to grow with your child. Follow these guidelines for safe and effective operation.
4.1 Adjusting for Different Stages (6-in-1 Functionality)

Figure 4.1: Adjusting the tricycle according to your child's needs.
- Infant Tricycle (6-18 Months): Use with the parent push rod, guardrail, canopy, and footrest. Ensure the 3-point harness is secured.
- Steering Tricycle (18-24 Months): As your child grows, they can begin to steer while you maintain control with the push rod. The guardrail and canopy can remain.
- Learn-to-Ride Tricycle (1-2 Years): Remove the guardrail and canopy. Your child can practice pedaling while you still assist with the push rod.
- Classic Tricycle (2-3 Years & 3-4 Years): Once your child is confident, remove the parent push rod. The tricycle functions as a standalone pedal tricycle.
4.2 Key Adjustments and Features
- Parent Push Rod: Adjust the height of the push rod for comfortable steering. It can be detached for independent riding.
- Canopy: The canopy is adjustable to provide optimal shade and can be removed.
- Guardrail: The detachable guardrail provides added security for younger children.
- Folding Pedals: The pedals can be folded away when not in use, allowing the child to use the footrest or for easier storage.
- Rear Wheel Brakes: Located on the rear wheels, press down to engage and lift to release. Always engage when stationary.
- 360° Swivel Seat: The seat can rotate 360 degrees, allowing your child to face forward or backward.

Figure 4.2: Rotatable seat, adjustable recline, and foldable handlebar.

Figure 4.3: The 360° rotatable seat feature.
Video 4.1: Demonstration of the tricycle's use as a stroller and its features like storage and adjustability.
Video 4.2: Overview of the tricycle's features including the removable handle, sun visor, bell, and foldable footrest.
5. Maintenance
Proper maintenance ensures the longevity and safety of your UBRAVOO tricycle.
- Cleaning: Wipe down the frame and plastic parts with a damp cloth and mild soap. Avoid harsh chemicals. The fabric seat and canopy can be spot cleaned.
- Lubrication: Periodically check and lubricate moving parts like wheel axles and pedal mechanisms if they become stiff.
- Storage: Store the tricycle in a dry, cool place away from direct sunlight and extreme temperatures. Utilize its foldable design for compact storage.
- Inspection: Regularly inspect for any signs of wear, damage, or loose components. Replace worn parts immediately.
6. Troubleshooting
If you encounter any issues with your UBRAVOO tricycle, consider the following common solutions:
- Tricycle not moving smoothly: Check for debris in the wheels or axles. Ensure all wheels are properly attached and not obstructed.
- Loose parts: Re-tighten any nuts, bolts, or fasteners that may have come loose during use.
- Brakes not engaging: Inspect the brake mechanism for any obstructions or damage. Ensure the brake lever is fully depressed.
- Difficulty adjusting components: Ensure release buttons or levers are fully engaged when attempting to adjust the canopy, push rod, or seat.
For persistent issues or concerns, please contact UBRAVOO customer support.
7. Specifications

Figure 7.1: Product dimensions.
| Specification | Detail |
|---|---|
| Model Number | HM-618 |
| Product Dimensions | 16.34 x 10.83 x 22.44 inches |
| Item Weight | 20.2 pounds |
| Material Type | Carbon Steel |
| Maximum Weight Recommendation | 30 Kilograms (66.14 lbs) |
| Target Gender | Unisex |
| Harness Type | 3 Point |
| Power Source | Manual |
| Batteries Required | No |
8. Warranty and Customer Support
For warranty information or to inquire about customer support, please refer to the documentation included with your purchase or visit the official UBRAVOO website. Our customer service team is available to assist with any questions or concerns regarding your product.