Fireflys adapter for presta bicycle valve cap
thingiverse
This is the long adapter for Fireflys tire valve LED cap using presta valves. The original one is too short and the presta valve tip is pushing into the internall battery storage causing battery circuit break. Second problem with original one - it is mounted on to the valve top thread - when you try to unmount it, it will loose and unscrew the presta valve causing flat tire in seconds. I made short and long version. Both will fit on the presta valve. I printed it witn 0.2mm layer height (needed for the thread precision) with 0.8mm nozzle and PETG. Nearest seam setting. It fits perfectly on both sides. Enjoy.
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