Fast rolling tire with thick tread and a square profile with deep siping and textured burly shoulder lugs. Suitable for pavement gravel and forest roads. 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. EBIKE50 - has achieved a passing rating for use with E-Bikes up to 50kph and is ECE-R75 approved. KS - K Shield A 3mm layer of aramid and ceramic particles inside the tire under the tread area only Kenda`s entry level belting. *Please note that EBike rated tires also can be used with non-Ebikes and are generally more durable than standard tires