Extralight rubber tube for 28 inch road wheels with french (Presta) valve. Available with 40, 50, 60 oder 80mm valve. Proven for many year Schwalbe Extralight tubes offer the same reliability as normal tubes but simultaneously a lower weight. Extreme air pressure stable! The rubber compound makes it possible: less air leakage and less to pump. Extremely reliable! Quality control for safe riding pleasure: each Schwalbe tube is checked twice on air retention in the factory.