The 4 ply Gravity 436 ATV rear tire is constructed of a specially designed 4ply rated carcass. Our “GPS” rubber compound is designed to last longer yet still provide the performance & traction you expect! The reinforced tread design of the “GPS” Gravity 436 performs excellent in just about any condition or terrain with a “2mm” taller tread depth delivering excellent steering in sandy, muddy & loamy conditions. The GPS Gravity 436 ATV Tires features (BRP) “Bead Ring Protection” for the extra long lasting durability! This tire is a perfect OEM replacement at a very good price. Similar tread to the MASSFX but better rubber quality resulting in better performance and wear life.