Zipp's Valve Extension extends your threaded Presta valve to accommodate deep dish rims. Use these extenders with your favorite Zipp wheels to make short work of pumping up your tires.
For use with threaded Presta valves
|33mm for 303||710845676031||00.1915.130.020||3832|
|48mm for 404||710845676048||00.1915.130.030||3834|
|72mm for 808||710845676055||00.1915.130.040||7574|