The Kwick Drumlin is hard to beat: K-Shield protection and a long lasting compound make it a reliable companion. Burly side knobs give confidence and grip on wet or loose conditions. Feels at home on concrete as well as gravel paths and forest roads.Specifications:Defined Color: Black Color: Black ISO Diameter: 584 / 650b / 27.5 Tire Type: Clincher Designed for ebike: Yes PSI: 80 Tire Diameter: 27.5 Labeled Size: 27.5 x 1.75 TPI: 60 Tire Intended Use: Gravel Tire Intended Use_35: Gravel Tire Bead: Wire Tire Bead_36: Wire ISO Width (mm): 44 Flat Protection: Tread