Mountain Bike Valve Stem Adapter
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Mountain bike valve stem adapter. The adapter effectively converts your presta valve to a schrader valve so that you can use a traditional air pump to inflate it. The presta valve is on the left. They tend to hold air better than schrader valves. Mfjuns 5 pcs presta valve adaptors 10 pcs bike tire caps bike valve stem adapter for mountain bikes cars bike accessories.
Hi in this video i show how i pump inflate a mountain bike bicycle tire schwalbe nobby nic with presta valve. Since the stem on the presta is a lot narrower it allows for manufacturers to make narrower wheels and tires. But having a safe stem shouldn t mean limited sizing options that s why bontrager stems come in a wide variety of lengths and rises. Free shipping on your first order shipped by amazon.
Mfjuns 5 pcs presta valve adaptors 10 pcs bike tire caps bike valve stem adapter for mountain bikes cars bike accessories 4 6 out of 5 stars 612 4 99 4. Mfjuns 5 pcs presta valve adaptors 10 pcs bike tire caps bike valve stem adapter for mountain bikes cars bike accessories 4 6 out of 5 stars 612 4 99 4. Unlike a schrader the system doesn t use a check valve it seals entirely based on pressure in the tube or tire. Strong first light second and often not cheap bontrager has never cut corners when it comes to something as important to safety as a bike stem.
The pump i am using is a blackburn airtower 2. Attach your air pump and inflate the tire to the recommended pressure. Now install the adapter by carefully threading it clockwise onto the valve stem s threads. The valve stem opens by unscrewing a knurled textured nut at the top.
Mfjuns 5 pcs presta valve adaptors 10 pcs bike tire caps bike valve stem adapter for mountain bikes cars bike accessories 4 6 out of 5 stars 592 4 99 4.