Schwalbe SV 40mm Tube 2 (14"/16") 16–18 × 1.25–1.85

Schwalbe standard bicycle inner tube no. 2. For bicylce tires in 14" inch (ETRTO 37→47-288, 32→37-298, 40-305). Retains air for an above-average length of time. Thanks to the best material quality and uniform wall thickness. Maximum reliability that has proven itself millions of times over.