Schwalbe Marathon Supreme HS 469 HS Speed Guard Cross/Hybrid Bicycle Tire - Folding - 28 x 2.0 LiteSkin tires have light and thin sidewalls that save weight and reduce rolling resistance RoadStar Triple Compound provides security on wet, slippery roads as well as excellent rolling characteristics HD Speed Guard provides the highest level of puncture protection in the Marathon line ISO Diameter: 622 / road / 29" ISO Width: 50