Schwalbe SV 21 Inner Tube for 650b

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Extremely air-tight! Less air loss means having to inflate less often. Schwalbe's unique rubber mixture makes it possible. Extremely reliable! Each Schwalbe tube is individually examined twice at the factory to ensure air-tightness. Special quality control that prevents unpleasant surprises.

  • Standard 40mm valve
  • Weight: 205g