Ritchey STR Tubeless Presta Valve (Silver) (1) (55mm) - 55000007007
Ritchey STR Tubeless Presta Valve (Silver) (1) (55mm) - 55000007007, SunRingle STR Tubeless Valve Stem. Features: Durable brass tubeless valve stem with removable valve core for adding sealant Fits most rims and wheels with a Presta-size valve hole