I am a life long Thule customer and love their roof racks, but this bike rack is a fail. It sounded great in theory, but fails to deliver down the road. I bought it to attach to my BMW, thinking this just what I needed to travel around with my mountain bike. Within the first month of use, the locking levers on wheel trays had failed and do not lock. The locks don't engage and the trays can slide around, so I get real nervous making any turn. One day while working in the garage, I found a pin on the ground. I had no idea what it went to and luckily I kept it in a junk drawer. Guess what? Next time I loaded up the rack and my bike, I found out where it went! The others were loose as well and I must check them every time I am out of the car, in fear of loosing my bike. There isn't any way for them to stay in place. Big design flaw! The biggest fail with this rack though is the damage it has done to my trunk and painted bumper. The areas that the rack rests on the trunk and bumper will eventually scratch up pretty good, even though I have always made sure to wipe those areas off from any dust or dirt, before putting it on every time. If I could go back in time, I would of spent the money and had a hitch mounted underneath to the frame and gone with the Thule T2 Pro XT 2, just to keep it off my car.