The Schwalbe Big Apple began the Balloonbike trend back in 2001. Comfortable cycling without the need for expensive technology. At the time it was a revolutionary idea. Today it is a growing trend and there is now a large selection of Balloonbikes with everything designed around the Big Apple.;Sidewall lists german measurement; 28×2.3528 = 700cRaceGuard features a double layer of nylon fabric; which makes for good protection on light; sporty tiresBuilt-in “suspension” which absorbs over 36% of vibrations at the handlebar;Item SpecificationsWeight895gPSI20-55PSITire BeadSteelISO Diameter622 / road / 29″ISO Width60mmLabeled Size2.35Color Tread/SideBlack/BlackTire TypeClincherTire Diameter700c;29″Intended UseMountainDefined ColorBlack