The Adventure features an aggressive, directional tread design with lots of working edges to provide grip on difficult or slippery terrainRound overall profile paired with a consistent centerline tread make for low rolling resistance should you find yourself on a paved surface E25 - are rated for use with E-Bikes up to 25kph (15mph)Standard26x4.0559WireBk/Blk30176460EBIKE25NoUPC/EAN/GTIN: 6933882533011