Zipp Valve Extenders Size 33mm

The Zipp Valve Extenders feature a 3 mm hex broach in the barrel to guarantee a perfect seal when tightened and a raised machined head with a slight bevel to ease installation of the pump head. A ridged section keeps the pump head from slipping. 27 mm for older red 202 wheel sets 33 mm for 303 dimpled wheel sets 48 mm for 404 dimpled wheel sets 72 mm for dimpled 808 wheel sets 98.26 mm for dimpled 1080 wheel sets Please Note: Valve extensions require specific installation, so Zipp highly recommends that you watch the how to installation video on the Video FAQ section of Zipp.com and that you pre install extensions on your spare tires and tubes before your ride. Size 33mm