Schwalbe inner tube 29 SV19 Aerothan 47/65-622 Presta valve 40mm

Schwalbe inner tube 29 SV19 Aerothan 47/65-622 Presta valve 40mm

The Schwalbe Aerothan SV19 tube represents the most modern generation of bicycle tubes made of a special thermoplastic polyurethane (TPU). An improved 2026 version is now appearing on the market, which addresses the earlier weaknesses of TPU tubes.

Here is an overview of the key features and changes:

1. Main novelty: aluminium valve

The most significant change in the new generation (often marked as 19AE) is the move from an all-plastic valve to a robust aluminium body with an external thread.

• Higher durability: The aluminium valve eliminates the risk of the valve "wobbling" or being torn out of the tube body during careless pumping.
• Better stability: Thanks to the external thread and nut, the valve holds firmly in the rim, does not rattle, and the pump attaches to it better.
• Compatibility: Fully supports the new Schwalbe Clik Valve system.

2. Aerothan (TPU) material

Aerothan is not rubber (butyl) but a high-tech plastic developed in cooperation with BASF.

• Extremely low weight: It weighs approximately 90 g, which is 40–60 % less than a standard butyl tube. In the rotating mass of the wheel you can feel it in acceleration.
• Rolling resistance: It reaches the level of tubeless systems or latex tubes. The bike feels livelier.
• Puncture resistance: Although very thin, it is twice as resistant to punctures (thorn test) and significantly more resistant to "snakebite" (pinching against the rim) than butyl.

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