This bike rack unit assembly was simple and quick. The frame of this rack is heavy and very sturdy. I am very impressed with the purchase price and quality of this bike rack. We mounted this into our hitch on the back our am general wheelchair truck. This rack can hold my family’s bikes with little to no wobble. Our previous rack was purchased closed to the price of this rack from the harbor tool store and it was half the thickness and very wobbly. As other reviewers have mentioned, it is good practice to check the bolts and tighten when necessary. When not in use we can quickly store the rack with a plastic coated hook.