Maxxis Overdrive Tire 27.5 x 1.65, Single Compound, Reflective Sidewall, Steel Bead: Black Refelective stripe on sidewalls for enhanced low light visibility Intended use: city, urban, touring Thick, siped tread with Kevlar Composite puncture protection layer Silkworm technology under the tread provides extra puncture protection Single rubber compound for longevity and performance