Premium trekking comfort or commuting tire with a fast rolling tread pattern. REF - Reflective sidewall striping or hotpatch to aid in low light visibility. 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. EBIKE50 - has achieved a passing rating for use with E-Bikes up to 50kph and is ECE-R75 approved