Schwalbe 22 Inch Tube 8 Promotion

22 inch inner tube with different types of valves.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. Fits the following dimensions: 37-489 (22 x 1 3/8 NL)28-490 (550 x 28A)37-490 (22 x 1 3/8; 550 x 35A)37-501 (22 x 1 3/8)In general valves can be separated into three different groups:Presta valve: Sclaverand valve, Race valve, French valve,Dunlop valve: Wood, Bicycle or Dutch valve Schrader valve: Standard, Car or Moto valveValve type: Dunlop (Wood) ||| Presta (Sclaverand) ||| Schrader (Auto)Weight supplement: manufacturer information