Presta valve adapter

This print is for adapting Presta valves usually found on bicycles to common Schrader pump head used on cars and mountain bike air suspension .

The o-ring used is an 8mm outer diameter and 1.7mm section (3/16 x 1/16) and is pressed into the recess in the wide end of the adapter, the adapter may work just as well without. 

Design by Hooch on MakerWorld (license: CC0).