The hole in the rim does not appear to be the problem... I have checked it and the LBS has checked it and it looks fine... It would appear the rubber is lifting off the metal part of the valve stem...
These are Shrader valve stems, no nut with with them
Tires call for 75 to 100 pounds pressure... I an runnin 85 pounds in them and they feel rock hard...
Does anyone know if these tubes are indeed all coming from the same place with different brand names stamped on them .... Is there a brand you guys with experiance prefer/find works better then most ?... I don't mind paying for a quality item if I am getting the quality.. It appears though I am paying top dollar for brand names that aren't any different then the cheapies....
Thanks