Schwalbe Marathon Plus Tire 700x32 Wire Bead Black with Reflective Sidewall and 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 bandsSPECS SPECS: Labeled Size: 700 x 32 Color: Black/Reflective ISO Width (mm): 32 ISO Diameter: 622 / Road / 29" Flat Protection: Tread Weight (oz): 29 Tire Intended Use: Touring-Hybrid Weight: 810g Tire Type: Clincher Tire Diameter: 700c Tire Bead: Wire