Q-Tubes - 29" x 2.0-2.4" 48mm Presta Valve Tube

The Q-Tubes Standard Line Presta Valve tubes have a proven record of high quality control and consistent availability.Features .9mm wall thickness Removable Presta valve core Q-Tubes Standard Line packaging features environmentally friendly soy ink printing on recycled cardboard Specifications Labeled Size: 29 x 1.9-2.3 Weight: 221 g ISO Width (mm): 50 mm , 51 mm , 52 mm , 53 mm , 54 mm , 55 mm , 56 mm ISO Diameter: 622 / Road / 29" , 630 / 27" Valve: Presta Med 41-55mm Wall Thickess: .9 mm