The Schwalbe Marathon Tires incorporate light-reflecting sidewalls for better visibility and also utilizes a Silica compound for easy rolling and longer life. FEATURES: SmartGuard puncture protection to resist thorns, shards and even thumbtacks Marathon Silica compound for easy rolling and longer life Reflex sidewalls incorporate light-reflecting bands SPECS: Labeled Size: 16 x 1.35 Color: Black/Reflective ISO Width (mm): 34 ISO Diameter: 305 / 16" BMX Flat Protection: Tread Designed for ebike: Yes Tire Intended Use: Touring-Hybrid Tire Type: Clincher Tire Diameter: 16" Tire Bead: Wire