ZIPP DISC VALVE ADAPTOR
The "crack pipe"
- Synthetic elastomer gasket with 2X the holding power and 5X wear resistance of traditional gasket materials
- Two stage seal design, improves sealing and stability on all presta valve stems
- Adjustable compression, user can tighten the cap to increase holding power by 4X and compensate for wear
- 15 degree stem angle reduces stress on the valve stem from pump hose
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