CURT ActiveLink™ Cargo System | A Hassle Free & Comprehensive Cargo Solution

When you're on the move and need extra cargo, ActiveLink allows you to quickly add attachments to your hitch and bring extra gear along, without having to adjust your receiver or sacrifice interior space. Perfect for transporting varying types of cargo — from bikes or luggage when camping or traveling. ActiveLink attaches to the hitch of any car, truck or SUV and allows you to quickly attach and detach cargo accessories without the hassle of getting under the vehicle to remove the shank, having to align the hitch pin holes or getting your hands and clothes greasy and dirty. Simply install ActiveLink just once, and then choose one of the many hitch accessories that can be used for various activities — from a bicycle or a cargo carrier, to much more. It's that easy. Quickly load the attachment into the quick-connect shank, clip into place and go! Save time without compromising interior space with ActiveLink from CURT.

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how can I lock this? do you sell locks that fit it?