Reduced to its essentials, less spikes reduce weight for moderate winter conditions. Half the spikes as on Marathon Winter Plus, the Winter provides excellent control on glassy ice. With 50 EPI carcass, reflective lines and K-Guard it offers great benefits at an entry-level price. *Note, new studded tires require a ''bed-in period.'' Tires should be run in for approx. 40km (25 miles) on asphalt without heavy acceleration or braking to ensure studs are fully set. After this distance the tires can be ridden normally. Attributes Bead Wire e-Bike approved No Labeled Size 700x40C Primary Color Black Tire Compound Winter Tire Diameter/ISO 700C/622 Tire PSI 30-70 Tire Technology KevlarGuard Tire Type Clincher Tire Weight 905g Tire Width 40C Tire Width Range 39 - 50 TPI 50TPI