Presta Valve Core Tool Cap

Ever headed out for a ride only to discover low air in a tire thanks to a slow leak? Loose Presta valve cores are often the culprit - fortunately, this valve core tool cap provides an easy fix.

Each cap features an integrated tool that lets you tighten or loosen valve cores without rummaging through your spares bag or attaching a separate tool to your valve stem.

Recommend printing out of PETG with 0.15mm layer thickness. Threaded opening should point upwards so that layer lines run diagonal for strength. The cap should thread loosely onto the valve core so as not to bind on it, which might loosen the core when you go to loosen the cap; adjust flow rate if necessary.