Burley Design Flex Connector for Round Tow Arm — Black, Durable Tow-Arm Adapter with Safety Strap

Burley Design Flex Connector for Round Tow Arm (Black) is a durable tow-arm adapter that secures your Burley trailer to a round tow arm while allowing the bike to lay down independently of the trailer.

Designed to withstand years of regular use, the patent-pending Flex Connector links a round tow arm to Burley hitches so your trailer stays upright even when the bicycle is laid on its side. This connector installs inside the round tow bar and locks into the hitch with either a retaining pin or a bolt and nut depending on hitch type. It ships with a safety strap and D-ring for added security and is specifically made for round tow arms — check compatibility before purchasing.

How does the Flex Connector keep the trailer upright when my bike falls over?

The connector provides controlled torque between the tow arm and the hitch so the trailer resists tipping even if the bicycle goes down. Its internal connection design isolates movement, allowing as much as six feet of torque before the trailer is affected.

• Built to absorb twisting forces so the trailer remains vertical.
• Patent-pending design permits significant torque without disengaging.
• Safety strap and D-ring add a backup attachment point.

What parts are included and how does it attach?

The Flex Connector installs inside your round tow bar and secures into the Burley hitch using the appropriate hardware for your hitch model. The package includes the connector body, a safety strap, and a D-ring for secure secondary attachment.

• Connector body sized for round tow arms.
• Retaining pin or bolt/nut interface depending on hitch type.
• Safety strap with D-ring for extra retention.

Will this work with my existing Burley hitch model?

This Flex Connector is intended specifically for round tow arms and works with Burley hitches that accept an internal connector and retaining pin or bolt. Verify whether your hitch is a Standard Forged Hitch, Steel Hitch, or Classic Hitch to confirm which fastener method applies.

• Standard Forged Hitch and Steel Hitch use a retaining pin.
• Classic Hitch secures with a bolt and nut.
• Not designed for non-round or proprietary tow arm profiles.

How durable and serviceable is the connector over time?

Constructed for long-term use, the Flex Connector is engineered from robust materials and intended to tolerate repeated torque and road stresses. Routine inspection of the retaining hardware and safety strap will help maintain safe operation season after season.

• Engineered for repeated torque loads and everyday trail use.
• Simple installation makes periodic checks quick and easy.
• Replaceable retaining pin or bolt keeps the connector serviceable.

Who is this for: The Burley Design Flex Connector for Round Tow Arm (Black) is aimed at cyclists who tow Burley trailers and need a reliable adapter for round tow arms — especially commuter cyclists, touring riders, or families who want their trailer to stay upright if a bike tips over. Choose this connector if your trailer hitch accepts an internal tow-bar connection and you want a durable, easy-to-install solution that includes a safety strap and D-ring for added peace of mind.