Dual Graphene infused compounds designed to reduce rolling resistance increase puncture resistance and improve grip in key areas. Vittoria`s toughest most abrasion resistant casing with 20 TPI construction shrugs off potholes and road debris. Reflective sidewalls flash while rolling helping to increase your visibility during low-light commutes on crowded urban streets. E50 - Rated for use with E-Bikes up to 50kph (31mph) and conform to EU ECE-R75 standard and are designed for more demanding terrains and off-road adventures.