Robert Axles for Kid Trailers are designed specifically to fit your 12mm thru-axle bike and allow attachment of any hitch-mounted trailer.

These fit any trailer that has two wheels and a single point of attachment to the axle. This includes all the two-wheeled child, pet and cargo trailers such as: Thule, Chariot, Burley, Instep, Carry Freedom, and many more.

Purchase our Kid Trailer axle for your bike. Share your stoke for cycling with your kids. Simplify your life by allowing quick and secure attachment of your trailer to your best and favorite bike. Enjoy the adventure.

Robert Axle for Kid Trailers replaces your stock thru-axle so you can attach a child or cargo trailer to your 12 mm thru axle equipped bike.

• This axle is compatible with Burley, Carry Freedom, Chariot/Thule, Croozer, Instep, and many more hitch style trailers.
• The true length of the axle shaft is 180 mm, but can be shorted using the included 6 mm spacer for lengths of 174 mm or 180 mm. Please note: Thru-axle lengths do not equal hub standards. An axle has to be longer than the hub to fit in the frame. A 12×148 hub does not equal a 148 mm long axle.
• This axle has a 1.5 mm thread pitch.
• The axle shaft and axle end are precision CNC machined.
• The axle shaft is 7075 aluminum and hard black anodized for rugged durability.
• The axle end is stainless steel, which allow for mounting of the hitch provided with your trailer. The threads are M10x1 (metric).
• Hardware for attachment of the hitch is included; the hitch is not.
• No special tools required. Design allows for installation or wheel removal using your standard 5mm hex wrench.
• Designed, built and quality tested in the USA. Proven around the world.