The CST E-Series Reach features a robust casing with thick, fast rolling tread pattern, and comes equipped with a Double Breaker for improved puncture resistanceDB - Double Breaker, features both APL and EPS puncture protection for improved puncture resistance E - designated tires are designed to specifically withstand use on E-Bikes, with an upgraded casing and beadStandard700x38622WireBk/Blk7574522DB/REFYesUPC/EAN/GTIN: 6933882519244