Pirelli Scorpion Pro All Terrain/Enduro Front Tire - 90/90-21/-- Rated best DOT tire by Dirt Bike Magazine! Competition-designed with FIM homologation in mind; used by MX1 world champion Stefan Everts. Designed for soft/intermediate terrain with V-shaped half-shoulder knobs for cornering traction. Durable new tread compound increases structural stability, provides higher mileage and better traction. DOT approved front and rear.