For the price on CL these cages are great, they look awesome and really hold the bottle tight when mounted on the frame. Found out the hard way that there is no chance in the world that these things will hold bottles on a rear mount system. While riding on some slightly bumpy roads these things become bottle launchers fairly quickly. I would really hate to see how fast bottles would fly off while riding gravel roads. If these would hold on a rear system they would certainly get 5 stars but since they can't I can only give them 3.