Universal Bicycle Trailer Coupler — heavy-duty, tool-free hitch for most bikes and pet cargo trailers Key benefits - Secure towing: heavy-duty steel construction and a welded hitch arm give a stable, dependable connection between your bike and trailer. - Simple installation: complete hitch arm and connector come assembled; installs quickly without additional tools. - Reliable retention: each coupler includes a secure connect pin that resists accidental opening once installed. - Practical design: the welded hitch arm sits at an approximate 45-degree angle for broad trailer attachment compatibility and allows the trailer to remain upright if the bike is laid down. Features and specifications - Material: heavy-duty steel for strength and durability. - Hitch arm: welded at approximately 45 degrees to match common trailer attachment positions. - Included parts: complete hitch arm and hitch connector plus a connect pin. - Installation: tool-free installation — slide into position and secure with the provided pin. - Functionality: connector stretches/extends easily to permit laying the bike down while the trailer stays upright. - Compatibility note: fits most bicycles and pet cargo trailers. Before purchasing, measure the shaft diameter on your trailer and confirm the coupler matches that size. Practical use scenarios - Family outings: attach a child trailer for safe, reliable towing during neighborhood rides or errands. - Pet transport: connect pet cargo trailers for trips to the park or vet with a secure hitch. - Storage or roadside: lay the bike down for repairs or storage while the trailer remains upright and connected. Installation and safety tips - Measure the trailer shaft diameter before ordering to ensure a proper fit. - Slide the coupler onto the trailer shaft, align the hitch, and insert the provided connect pin until it clicks into place. - Check the pin and connection before every ride and inspect periodically for wear or loosening. - Do not modify the coupler or pin; use as designed for towing only. What’s included - Universal bicycle trailer coupler with welded hitch arm (approx. 45-degree angle) - Hitch connector - Connect pin This coupler is a practical, durable accessory for most bike trailer setups. Verify shaft diameter compatibility before purchase to ensure a secure fit.