Multiple Block Distribution provides more blocks in the rear tread pattern compared to the Geomax MX3S, increasing the contact patch for better grip and slide control Dunlop - MX33 - 80/100-21" (F Developed with the help of top motocross pros, the all-new MX33 is the new industry standard for soft-to-intermediate terrain. Altered Block-In-A-Block shape on the rear increases surface area of the rear block, while additional tread angles enhance grip, stability and slide control. Replaces the MX3S as the soft-to-intermediate terrain choice Block-In-A-Block Technology Tire Dunlop MX33 Geomax Soft/Intermediate Terrain Tire Lebanon Dunlop Geomax Mx33 Tires Carcass Tension Control System allows even flex throughout the tire for increased bump absorption Pneumatico Dunlop GEOMAX MX33 80/100-21 (51M) TT - Pneumatici e cerchi An all-new compound in the front and rear tires enhances durability without sacrificing the legendary grip of the Geomax line.