• They flow more air because we designed them with the biggest air passage we could fit into a presta valve.
• Updated with captured O-rings and an even more leak resistant base.
• 2017 models come in 2 lengths:
• Short stem: 19-27mm rims - if you use the included o-ring it'll work up to 29mm. this covers almost all aluminum rims.Use these for all e*thirteen rims
• Long stem: 27-37mm - if you use the included o-ring it'll work up to 39mm. this covers deep section carbon rims like Enve, DT Swiss.

Color Blue

Type Presta

Length 37mm

Quantity Pair

Material Alloy