Schwalbe SCV 40mm Tube 19 (27.5"/28"/29") 27.5–28 × 1.50–2.50

Schwalbe standard bicycle inner tube no. 19. For bicycle tires in size 27.5"/28"/29" inch (ETRTO 50→62-584, 40→62-622, 40-635). Holds 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.