Kids Bike Trailer & Tag-Along Bikes

A kids bike trailer and a tag-along bike both let families ride together, but they suit different stages. A child bike trailer carries a seated passenger behind the adult bicycle. A tag-along bike—also called a trailer bike or trail-a-bike—lets a child sit upright and pedal while the adult controls the direction and most of the braking.

Choose according to your child’s developmental readiness, height and weight, not age alone. Then check the towing bicycle, hitch or mounting system, route, storage space and the manufacturer’s limits before buying.

The right setup should fit both riders, attach securely to the approved part of the adult bike and remain within every published passenger and load limit.

Kids Bike Trailer and Tag-Along Options Compared

What Age Can a Child Use a Bike Trailer?

There is no single minimum age that applies to every child or every trailer. Before riding, a child must meet the product manufacturer’s readiness, age, height and weight requirements. They also need enough head and neck control to remain stable while wearing a correctly fitted helmet for the full journey.

• For a child bike trailer: the passenger must sit in the approved position, remain supported by the harness and keep their helmet clear of the trailer structure.
• For a tag-along bike: the child must reach the saddle, handlebars and pedals or foot supports correctly and stay upright throughout the ride.
• When unsure: wait until your child is developmentally ready and ask a child-health professional for advice about head control or posture.

Stop using the product when any published age, height, weight or combined-load limit is reached—whichever comes first.

Bike Trailer vs Tag-Along Bike: Which Is Better?

Choose a Kids Bike Trailer When

• Your child is ready to travel as a secured passenger but is not ready to pedal.
• You need an enclosed design with the weather protection, ventilation or cargo space offered by the chosen model.
• Your route and storage area can accommodate the trailer’s width, length and turning space.

Choose a Tag-Along Bike When

• Your child wants to pedal but cannot yet complete the whole family route independently.
• They can maintain a secure riding position and respond to instructions while moving.
• You want a more compact system and your bicycle has the correct approved mounting point.

Will a Bike Trailer or Tag-Along Fit Your Bicycle?

“Universal fit” should never be assumed. Bike trailers commonly connect near the rear axle, while tag-along systems may attach to the seatpost, rear rack or another model-specific mount. Axle type, frame material, wheel size, brake position and cable routing can all affect compatibility.

• Check the towing bike: confirm its manufacturer permits the trailer or tag-along and the additional load.
• Identify the mount: compare your rear axle, seatpost or rack dimensions with the exact product instructions.
• Check every load limit: include the child, trailer or tag-along and any cargo when calculating the total.
• Ask about e-bikes and special axles: some systems need an approved adaptor, and some bicycles are not approved for towing.

If anything is unclear, have the complete setup checked by a qualified bicycle mechanic before carrying a child.

Safety Features to Look for Before Buying

Compare the complete safety system, not just price or colour. Features and test standards vary by model, so read the exact product specification and instruction manual before ordering.

• Secure restraint: an adjustable child harness with a buckle the passenger cannot easily release.
• Reliable connection: a robust hitch or mount plus the manufacturer’s secondary retention system.
• Passenger protection: a sturdy frame, protected wheels and an enclosure that keeps hands, feet, clothing and straps away from moving parts.
• Visibility: a high-mounted safety flag, reflectors and suitable lights for the route and conditions.
• Comfort: supportive seating, ventilation and weather covers that do not restrict airflow.
• Relevant testing: if a standard such as EN 15918 or ASTM F1975 is listed, confirm it applies to that exact trailer model.

Bike Trailer Pre-Ride Safety Checklist

Complete this quick check before every family ride. Follow the product instructions if they require additional steps.

1. Lock the hitch or mount. Confirm all pins, latches and fasteners are fully engaged.
2. Attach the secondary restraint. Secure the safety strap or backup coupling exactly as directed.
3. Check wheels and tyres. Confirm the wheels are locked in, tyres are inflated correctly and nothing rubs.
4. Fasten the passenger. Adjust the harness or riding position and secure loose clothing, laces and straps.
5. Fit helmets. The adult rider and child passenger need approved, correctly fitted and fastened bicycle helmets.
6. Test the complete bike. Check brakes, steering, lights, reflectors and the safety flag before entering a path or road.

How to Ride Safely When Towing a Child

A trailer or tag-along makes the bicycle longer and heavier. It changes acceleration, braking distance, turning space and low-speed balance. Practise first without a child, then begin with a short ride on a quiet, familiar route.

• Ride smoothly and below the product maker’s maximum speed.
• Brake earlier and allow extra clearance around corners, bollards, kerbs and parked vehicles.
• Avoid sudden turns, steep routes, rough ground and off-road use unless the product is specifically approved for them.
• Use the cover as instructed and maintain airflow in hot Australian conditions.
• Never leave a child unattended in a trailer or on a tag-along bike.

Australian Rules for Bike Trailers and Tag-Along Bikes

Australian bicycle helmet and passenger rules apply when carrying or towing a child. The passenger must wear an approved helmet that is correctly fitted and securely fastened. The adult bicycle and attachment must also be designed and equipped for the passenger and load.

Age limits for the towing rider and passenger, permitted riding locations and trailer requirements can differ between states and territories. For example, Victoria requires the towing rider to be at least 16 and generally limits a trailer passenger to under 10. Always check the rules where you plan to ride.

Review the current guidance from Transport Victoria, WA Road Safety Commission and Better Health Victoria.

Cleaning, Storage and When to Replace

Keep the connection points clean, store the product dry and follow the manufacturer’s lubrication and tyre-pressure instructions. Regular checks matter because towing components experience vibration, weather and repeated loading.

• Stop after a crash or rollover: arrange the inspection or replacement recommended by the manufacturer.
• Replace damaged parts: do not ride with a bent frame, cracked hitch, worn harness, unreliable buckle, loose wheel or missing retention component.
• Check fabric and covers: tears that weaken the enclosure or expose the passenger require approved repair or replacement.
• Use approved parts only: never substitute hardware or modify the frame, mount, restraint or safety system.

Remove the trailer or tag-along before transporting the adult bicycle on a vehicle-mounted bike rack unless the manufacturer expressly permits that setup.

Explore Kids Bike Trailers and Tag-Along Bikes at Xchange Sports

Browse the latest availability in our kids bike trailers and tag-along bikes range. Check the individual product page for the exact passenger limits, bicycle compatibility, included mounts and approved riding modes before ordering.

Complete your family cycling setup with a correctly sized option from our kids bike helmets range, improve visibility with bike lights and find more practical essentials in our bike accessories collection.

In-stock orders leave our Sydney warehouse within two business days. Tracking is emailed after dispatch, and current rates and estimated delivery times are listed in the Shipping & Delivery Policy.