The Schwalbe Big Ben K Guard 27.5x2 Wired Tyre offers the best comfort due to its large volume. The tread design is modern and tough, providing maximum riding safety in urban traffic. Performance Line means more safety due to RaceGuard puncture protection. With ECE-R75 certification for fast E-Bikes (E-50). Active Line: Big Ben is available in the classic colours for the perfect urban bike look. Schwalbe Big Ben K Guard 27.5x2 Wired Tyre Features Wired Tyre SBC Compound Integrated Kevlar Guard Dynamo ribbing for extra grip E-bike use for speeds up to 50kph Weight: 835g