Smooth minimal tread tire for city riding bike paths or commuting. Continuous center ridge for added speed and easy pedaling.. Afforability and longevity make this tire a no brainer for daily commuters. SRC - Standard Rubber Compound combines the best attributes of low rolling resistance extreme durability and tread longevity into one universal package that benefits riders of all disciplines. KS - K Shield A layer of aramid and ceramic particles inside the tire under the tread area only Kenda`s entry level belting. EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph