{{block id='inner_tubes_3x 2'}} 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. Â 28-622Â ----28 x 1 5/8 x 1 1/8-----700 x 28C 30-622Â ----28 x 1.20---------------700 x 30C 32-622Â ----28 x 1 5/8 x 1 1/4-----700 x 32C 37-622Â ---28 x 1 5/8 x 1 3/8-----700 x 35C 40-622Â ---28 x 1.50---------------700 x 38C 42-622Â ---28 x 1.60---------------700 x 40C 47-622Â ---28 x 1.75---------------700 x 45C 32-630Â ---27 x 1 1/4 40-635Â ---28 x 1 1/2--------------700 x 38BÂ Â