The hydraulic damper provides weight assistance, making it easier to both lower and raise the rack with bikes fully loaded. Accessible tilt release handle for tilting the rack. The rack locks itself when tilted down in the load position. By gently pushing the handle down, the memory function activates which allows the user to let go of the handle and use both their hands to push the rack back up again With bikes mounted, the trunk is accessible with a push down handle tilt 20-29" wheels (20-24" accessory insert sold separately) with tires wide as 5" (4-5" accessory wheel basket sold separately) The high load capacity of 55lbs (25kg) per bike and a max carrier load capacity of 250lbs (113kg) makes it possible to transport the heaviest bikes and lighter E-bikes Quick and easy bike loading and unloading of bikes with limited to no lifting required. Wheel baskets designed to easily roll in and roll out the bikes while the rack is tilted down