I bought this thing thinking I could remove it when ever I wanted. So if i wanted to go on a long ride, and I didn't want to transport anything, I would be unencumbered. However, this is not the case. If you put anything over 5 lbs on the rack then it will move around and really mess up your ride.So to compensate for the swaying you have to screw it on so tight that you have to use tools to remove it. This works a little, but doesn't completely stop it from moving if you got more than 10 lbs on it. So now i am stuck with this thing and since I bought the bag that clips onto it I am forced to buy a stationary rack.They system is a great idea, but I think the Topeak MTX BeamRack needs more refining. I recommend just getting a topeak stationary rack with the MTX bag system.