Zipp Tangente Butyl Tube - 700 x 20-28mm 37mm Aluminum Presta Valve. The Zipp Tangente butyl tubes are designed to meet the needs of a new era of road riding that includes adventures aboard wider tires. The tubes 0.60mm thickness is optimized for durability.

37mm valve stem length

Lightweight aluminum valve body with removable Presta valve core

For use with Zipp Tangente Aluminum Knurled Valve Extender

0.60mm thick to optimize durability

When installing Zipp Tangente tubes (37mm valve stem) on Zipp wheels the following valve extender is recommended: PU9911 27mm (1 gram) for 303 model wheels
PU9912 41mm (2 g.) for 404 models
PU9913 65mm (4 g.) for 808 models
PU9914 91mm (6 g.) for 1080 models