Using the Yakima HoldUp EVO 2 is simple. First, make sure you have a 50 mm (2') Hitch Receiver on your vehicle. Then, use the super simple locking SpeedKnob™ to install the rack without any tools. Once installed, place your bikes on the rack and use the StrongArm hook to secure them at the wheels. This will protect the carbon frames and painted surfaces of your bikes. If you need to access the rear of your vehicle, use the new easy - to - reach tilt lever or the KickStart™ foot pedal to tilt the rack with the bikes still loaded. To keep your bikes safe, use the included SKS bike locks. When it comes to maintenance, regularly check the SpeedKnob™ and the StrongArm hook for tightness. Clean the rack with a mild soap and water solution to keep it in good condition. Avoid using harsh chemicals that could damage the finish. Also, make sure to store the rack in a dry place when not in use.