Versatile street style tread offers a smooth compliant ride with positive grip characteristics Features K-Shield protection for puncture resistance and a reflective sidewall for better urban visibility 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 EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph and is ECE-R75 approved