I have a yakima hitch mount. It hold 4 bikes The Sportsworks is awesome because you don't need to remove a wheel or anything like that, but neither do I. Another cool thing about the Sportsworks is it doesn't hold the bike by the bars. It holds it by the wheels. Now that I've given you the pros of the highly recommended Sportsworks. Here is a con I found...It's heavy as bleep, and it doesn't fold away very easily. It does fold while on the car, but it's still quite large, and takes up alot of room. My Yak is light and fits in most places. It holds bikes well too. The most I've had on it is three, but it held well on the highway at 65-70 mphs. Oh another thing about the sportsworks is it will hold any time of frame, because it holds by the wheels. In other words if it doesn't have a cross bar your still okay. They make cross bar attachments for the Thules, and Yaks though. I had an irregular bike on mine though with no problem. It was an 03 Specialized Stumperjumper if your curious as to what type of frame it was. So to sum this up, the Sportsworks is cool, yet heavy, and big, and expensive. The Yak/Thules are far less expensive, do the a fine job, are cool enough, and a lighter. I got mine for about half price new on ebay. Just look around.