Onza SA2 MTB Tube - 26x1.90-2.125 Inches

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Onza SA2 26x1.90-2.125" Tube, 0.6mm thickness, either with Schrader- or Presta-Valve.

Inner tubes are part of the rotating mass, and therefore they should be as lightweight as possible. But they also have to be plenty tough as a flat easily eliminates any gain in time. Onza Tires' inner tubes are available either with a lightweight Presta valve that handles high pressures well or a Schrader valve. The Schrader valve is known from cars and allows you to adjust the tire pressure at any gas station.