Standard thickness tube for 27.5in MTB wheels and 650B road wheels.
- 42mm Presta valve stem works with the deeper rim depths on MTB rims.
|Ideal for||Mountain biking|
Bicycle tubes are valve-specific. Presta – narrow, with a built-in valve cap that you loosen when pumping up the tire and tighten again afterwards. Schrader – wide, with a pressure valve similar to those on a car tire.