Today, on our 2007 Mazda CX7, we'll be installing the Hidden Hitch trailer hitch in the Class 2 with an inch-and-a-quarter opening in the receiver, Part No. 90154. Here's what our hitch looks like installed on our vehicle. Now, we'll go ahead and give you a couple measurements in helping you choose some accessories for your hitch, such as a ball mount, a bicycle rack, or a cargo carrier. From the… see more >