Extremely air-tight! Less air loss means having to inflate less. A unique rubber mixture makes it possible. Extremely reliable! Each SCHWALBE tube is individually examined twice at the factory to ensue air-tightness. Special quality control that prevents unpleasant surprises. 28-622 Â Â Â Â 28 x 1 5/8 x 1 1/8 Â Â Â Â 700 x 28C 30-622 Â Â Â Â 28 x 1.20 Â Â Â Â Â Â Â Â Â Â Â 700 x 30CÂ Â 32-622 Â Â Â Â ï» 28 x 1 5/8 x 1 1/4 Â Â Â Â Â 700 x 32C 37-622 Â Â Â Â 28 x 1 5/8 x 1 3/8 Â Â Â Â Â 700 x 35C Â 40-622 Â Â Â Â Â 28 x 1.50 Â Â Â Â Â Â Â Â Â Â Â 700 x 38C Â 42-622 Â Â Â Â Â 28 x 1.60 Â Â Â Â Â Â Â Â Â Â Â 700 x 40C Â 47-622 Â Â Â Â Â 28 x 1.75 Â Â Â Â Â Â Â Â Â Â Â 700 x 45C Â 32-630 Â Â Â Â Â 27 x 1 1/4Â 40-635 Â Â Â Â Â 28 x 1 1/2 Â Â Â Â Â Â Â Â Â Â Â 700 x 38B