Stan's Alloy Presta Valve Stem. Features: Lightweight aluminum valves, half the weight of standard brass valves Tubeless Presta valve stem with removable valve core for adding sealant A perfect fit for all of Stan's BST rims and wheel models and fits most other tubeless rims and wheels Fits up to an 8mm valve hole Weight: 8-10g Specs: Width:39mm Roll Size:60 yard
