K-SHIELD. The protective layer is applied between the mantle and the tread. K-Shield is made of ceramic particles and aramid fibers. Fewer punctures reduce repair time and prolong your driving pleasure. In addition, K-Shield reduces rolling resistance. - Wheel size: 28 inch - E-bike compatibility: Manufacturer's recommendation up to 25 km/h - Scope of delivery (quantity): single - Intended use: City & Trekking - Details: - Comfortable rolling due to wide central web and grip due to studs on the sides - Comfortable premium trekking tire - Can be used for front and rear wheel Tire - Type: clincher tire - Design: K-Shield.