BOLANY Presta Valve Stem Bicycle Tubeless Vacuum Extender Adapter for Bike
- Silicone: Other parts are made of silicone material, corrosion resistant, enlarged base, suitable for long term use.
- Sealing Effect: Good sealing result, no air leakage, which can extend the service of your tire.
- Unversal: Universal for most MTB and road bikes, with O ring to keep nut tight and protect your rims.
- Light Weight: The weight of 6g is easy to bear and the presta valve adapter will cause less fatigue and energy waste.
- Quality Material: Aluminum alloy material which has been strictly selected, for a more durable performance.
