Shinko 520 Series Intermediate / Hard Tires The 520 Series Tire is design to shred intermediate and hard terrain with a carbon-rich compound and directional tread design. Reinforced knobs resist chunking and tearing. Features: Formulated for intermediate and hard surfaces High carbon blend for extended wear Economically priced DC model uses a dual compound construction for longer tread life Need your tire mounted Weve got you covered! Tire Mount Discount