44 mm Super light Black Alloy bicycle tubeless valve stem

描述

Model: Gredes Aluminum Alloy - Black 44 mm bicycle Presta tubeless valve stem Features: Material: Valve stem is Anodized aluminum in Black Length: 44 mm (from rubber base to top of core not) Weight: 0.3 ounce per set (as pictures shown) Patented: Special rubber base which provide the valves could hold the rim tighter to prevent air leaking