Have had two of these racks on my car for four years. It's not easy to place and remove bikes in rack on top of SUV, especially our mountain bikes. After a year on top of car the arm becomes very difficult to move and position properly. Have traveled a lot and have had no problems with secure fit in either road or mountain bikes. Still looking for low maintence, long lasting , easy on-off roof racks. Placement of these racks on car is not an easy task, and once there you do not want to mess around to remove them.