Just a thought ... could you use something like this plugged into a 12V charging socket on your bike to pump your tyres up :
Halfords | Halfords 12v Tyre Inflator 2009
Have an old-style similar thing for car tyres which plugs into cigarette lighter socket. If you had a charging socket like that and compatible valves on your inner tubes, presumably you could just plug inflator into socket and away you go ?
Halfords | Halfords 12v Tyre Inflator 2009
Have an old-style similar thing for car tyres which plugs into cigarette lighter socket. If you had a charging socket like that and compatible valves on your inner tubes, presumably you could just plug inflator into socket and away you go ?