Stan's Tubeless Exo-Core Valve Stems - Alloy Regular Black Pair Mount-Cinch DM making it a good choice

making it a good choice for city and trekking bikes

It tests well against racing waxes

Combines Merino wool and 4-way stretch for natural odor-resistance

while ensuring optimal comfort and efficiency

Stan's Tubeless Exo-Core Valve Stems - Alloy Regular Black Pair Mount-Cinch DM making it a good choiceRevolutionary design evolved from 20 plus years of experience with tubeless systems Engineered to work with existing pumps and gauges Oversized bore diameter ensures maximum airflow and easy sealant refresh Intuitive open close housing design has a large grip area for precise control of airflow External sealing and an all brass core eliminates clogs Tapered elliptical stopper ensures air tight seal on all rims Self locking valve nut has a captured o