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 Standard 29x2.4 622 Wire Belted Bk/Bsk 50 60 REF/SRC/KS YesUPC/EAN/GTIN: 047853644197