The air valve on '09 28-spoke wheels seem to be a little difficult to get at ... almost impossible with some gas station air pump apparatus. I talked to my dealer and to Harley customer service (800 number). Customer Service told me the valve is rubber and can be moved from side to side. Personally I don't think that's a very good idea over the long haul given the number of times air pressure will be checked and adjusted. It's bound to affect the valve seal at some point. The fix should be quite simple ... A 90 degree bend valve stem. But the Harley dealer doesn't have any and the parts dept say they've never seen any. Metric shops carry them ... Had one installed on my last bike (Nomad) when replacing the OME tire. So my question would be ... Is the valve size standard throughout the industry? Would the wheel rim mounting holes for the valves be the same size regardless brand manufacturer? Would an air valve for a metric wheel rim fit a Harley wheel rim? ... Failing that ... would there be any aftermarket valves at any of the Harley custom shops to fit the bill?