Zipp’s custom-designed valve extensions feature a 3mm 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.
Note: Valve extensions require careful installation, so we highly recommend pre-installing them on your spare tires and tubes before your race.
- 27mm (1.05") for older (red) 202 wheel sets.
- 33mm (1.3") for 303 and new 202 (32mm profile) dimpled wheel sets.
- 48mm (1.9") for 404 dimpled wheel sets.
- 74mm (2.9") for dimpled 808 wheel sets.
- 98.26mm (3.9") for dimpled 1080 wheel sets