This Presta tube fits 650mm wheels.
The valve stem is not threaded, threaded styles can cause premature wear on pump valves.
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.
|Fits tire||650 x 25|