STI Tires & Wheels

STI, STI Tire & Wheel, designs and manufactures tires, wheels and tubes for ATVs, UTVs and off-road motorcycles. Launched in 2010 and led by powersports industry veterans, the brand has quickly become a popular choice for trail, mud, sand and race applications.

STI offers matched tire-and-wheel packages along with standalone tires and lightweight wheels in a range of sizes and styles. Riders choose STI for off-road traction, durable construction and the convenience of complete, ready-to-mount setups for their side-by-side or quad. Tell us your terrain, we'll pair the right STI compound and wheel offset.

For related gear, see our ATV and UTV tire collection, or browse our side-by-side and ATV parts.