Secure your ride with Saris trunk rack lock. The Saris Trunk Bike Lock is a security lock that is designed to secure your bike lock rack to your vehicle. The cables are secured within the closed trunk and can be used on hitch racks, trunk racks, stationary posts, or anywhere you need to secure your bicycle. The Saris bike rack parts has a vinyl coating that protects the finish on your car and bicycle. It includes an 8 ft. cable and 2 keys. The perfect solution for securing your bike to your Saris bike lock. This high-quality lock is designed to provide a secure and reliable way to protect your bike during transport.