New Tangente tube part of improved valve-extender system
We are pleased to introduce Zipp’s new lightweight Tangente™ butyl road tube, designed to improve rotational stability by decreasing rotational mass at the valve body. The new Zipp® Tangente tube features the only aluminum presta-valve body on the market (37 mm length with removable valve core). To complement the tube, the new integrated Zipp aluminum Valve Extenders are available in lengths for each Zipp wheel.
The new tube-and-extender system puts the removable Presta-valve core at the end of the extension for the most effective air seal. That means you get the same access to the valve top you would have with an ordinary stem. You simply access the top of the Presta valve directly, just as you would on a tube without an extender.
Zipp’s new valve extender system requires three components, each sold separately, making extender choice possible based on your preferred wheel set-up. Also, an all-in-one valve extender kit will be in stock soon:
1. Zipp Tangente Tube with Removable Core ($10): The butyl tubes are 700c x 19-23 mm Presta 37mm and weigh 89 g without extender. The butyl tubes feature an aluminum valve body to save weight, allowing a tube thickness of .85 mm to optimize durability. The lightweight valve body also provides increased rotational stability.
(Sizing note: Due to the shorter 25 mm length of the Tangente Tubular Valve stem it is recommended to move up one size of valve extender to allow enough extender coming out of the rim.)
3. Zipp Valve/Extender Wrench Set ($7): Each set has two 4 and 5 mm wrenches required for assembly. The tube-valve body and extenders have wrench flats for easy removal and installation.
4. Available in March -- Zipp Integrated Valve Extenders and Zipp Valve Wrench Set ($25): Each complete set includes three Zipp valve extenders and two Zipp valve/extender wrenches for an all-in-one kit:
A small amount of grease is required to seal the threads of the valve extension and valve core.
The extensions include an instruction manual and require the Zipp valve/extender wrench for proper assembly. For instruction information, visit the integrated-valve extenders page and click on photos to left marked "alternative views."