Continental eRuban Plus Tire - 20 x 2.40, Clincher, Wire, Black SL, PolyX Breaker, PureGrip, Plus Breaker, E50eRuban is an energy saving allrounder e bike tire that gets you to both Rural and Urban destinations. This tire is the partner for your daily commute, running errands and weekend tours, with added protection. Center tread keeps you rolling efficiently Outer knobs grab the ground when you need it in the corners Added protection for increased durability Product Specifics Flat Protection: Tread and Sidewall TPI: 180 Color: Black Weight: 626 Designed for