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Bicycle Inner Tube Schwalbe SV13 Presta Valve 26" 40 - 62 mm
The Schwalbe SV13 inner tube with Presta valve is designed for 26" wheels and fits tire widths from 40 to 62 mm. Manufactured from a carefully purified rubber compound and vulcanized in a mould to ensure consistent wall thickness, this tube is built to retain air pressure reliably. Each tube is inflated and stored for 24 hours for pressure testing and receives an individual visual inspection. The valve is nickel-plated and threaded, with a replaceable valve insert and a transparent polycarbonate dust cap.
The SV13 benefits from a multi-stage filtration process of the base material and controlled vulcanization, resulting in uniform walls and enhanced airtightness. Extensive quality control — including a 24-hour inflation test and visual inspection — supports consistent reliability. The tube’s elasticity enables a group sizing range that covers multiple tire widths, simplifying stock management and ensuring compatibility across a range of tires.
Install the inner tube by partially inflating it, inserting it into the tyre mounted on a 26" rim, and seating the tyre bead evenly around the rim. Fully inflate to the tyre manufacturer’s recommended pressure displayed on the tyre sidewall. Check that the valve is properly seated and tighten the valve locknut if present. Replace the valve insert if needed using the threaded valve design.
Store unused tubes in a cool, dry place away from direct sunlight and ozone sources. Before each ride, check tyre pressure and inspect the tyre and tube for damage. Use the tube within the specified tyre width range (40–62 mm) to ensure proper fit and performance.
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