Before people tell me to search I have and tried to reply and the thread said its more than 140 days old and i cant do so. when i fill up air at the servo I have to bend the rubber valve on the rim to get the pump on. When I do this air leaks out the valve at the rim. When I take it off and the valve sits upright no leaking sound, but over time about 1 months the pressure drops from 42 to about 27psi, is this normal , is the valve base bending broken something to let air out, are not these things built to bend? its hard as hell to get the air pump end to fit without bending getting past the large brake or chain on the side.