Lightweight and strong! Schwalbe inner tubes are designed & manufactured to retain air pressure considerably longer than their competitors. Not only is each individual tube inflated & inserted into a mould to ensure that there is even wall thickness & excellent air retention, they are also stored under pressure for 24hrs to test air retention.
Buy Schwalbe 20" Inner Tubes from New Era Cycle online bike store. The best bike accessories, parts and components shop.
The inner tube quality is very good. Highly recommended