The Speedster was designed for rolling speed and minimal drag on hard pack or paved terrainCount on this tire for high performance during BMX racing, dirt jumps, and urban shreddingOR - Vee`s OverRide technology offers 3 times the puncture protection over previous non-OverRide modelsEBIKE50 - has achieved a passing rating for use with E-Bikes up to 50kph and is ECE-R75 approvedStandard20x4.0406WireBk/Blk3026OR/EBIKE50NoUPC/EAN/GTIN: 848712082279