If like me you doubt the rigidity of this support, you can go for it. We can manipulate buttons GPS (quite hard on the EDGE 500) without it move a muscle! It is even more rigid than the original media and elastic. Alas, after 6 months of use the clamp the device in the "bush" becomes softer, it takes the game and it vibrates. That may be because now I have an Edge 810 and it is considerably heavier.