Bike tire valve cap for Presta valve
thingiverse
I'm always losing the damn caps for my inner tube valves, and you can't get new caps without buying a new inner tube. This print keeps me from having to steal caps from my spare tires. Note: For those of you trying to make this work on Schrader valves, I just posted http://www.thingiverse.com/thing:10700 If you don't know whether you have Schrader or Presta, if you're in the US you probably have Schrader, and if you're in Europe you probably have Presta. Instructions Just print it. I used PLA, and it screwed onto the valve without tapping or reaming.
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