The tubes are mold-cured and vulcanized from high quality butyl rubber in a seamless construction that eliminates weak points. Every tube then must pass a rigorous quality control inspection before it leaves the factory.

FEATURES

• 40mm Schrader valve
• All tubes are seamless and mold-cured (vulcanized) to ensure uniform roundness and improved reliability at the valve stem. Each and every tube passes a stringent 100% quality control inspection
• 200g