Continental Contact Urban 20" Wire Tire City Miles, Covered Commuters and urban riders on 20" bikes need a tire that rolls fast on pavement and shrugs off the debris that city streets throw at them. The Contact Urban is built around that exact problem. A slick center keeps rolling resistance low on straightaways, while a treaded shoulder gives you grip when you lean into corners on slick asphalt. The Safety Pro breaker layer under the tread is what sets this tire apart from a basic city clincher - cross-woven nylon textile cuts the risk of flats from glass and sharp stones without loading the tire up with extra weight. Rated E50, it handles the added torque and sustained speed of e-bike use without premature wear, and a reflective sidewall stripe keeps you visible when the light drops. Features 20" wire bead clincher fits 20" city, folding, and e-bike wheel setups Safety Pro Breaker cross-woven nylon textile puncture protection layer that is robust, flexible, and lightweight Pure Grip Compound activated silica-based rubber formulation for strong grip and long-lasting durability Slick center / treaded shoulder tread pattern low rolling resistance on the straights with confident grip in corners E50 e-bike certification rated for e-bike use at speeds up to 50 km/h (31 mph) with reinforced structure to handle motor-assisted torque Reflective sidewall stripe improves visibility in low-light conditions without added bulk | Continental | Contact Urban 20" Wire Tire 20X2. 00 Reflex Puregrip Safetypro E50 | Nylon