Memorial Day Sale is Live! Shop Now Sale Ends 5/26/26

Free Shipping On All Order Over $100 | Free Gifts on all Orders over $300

System 3 Wheel and Tire Combo St-3 Simulated Beadlock Wheel with RT320 Off-Road Tires

$1,890.58 $2,130.88

Bolt Pattern
Wheel & Tire Size
Wheel Color

Pickup available at 743B Wakefield ct

Usually ready in 24 hours

View store information

System 3 ST-3 Wheels & RT320 Race & Trail Tires

We will attempt to mount these wheels and tires before shipping, but both the wheels and tires must be available in the same warehouse at the time of fulfillment. If mounting is not possible, we will contact you before shipment.

If you want a wheel and tire setup that looks aggressive, performs across mixed terrain, and holds up to real off-road abuse, the System 3 ST-3 Wheels paired with RT320 Race & Trail Tires are a hard combination to beat.

This setup combines the bold styling and strength of the ST-3 wheel with the versatile all-terrain performance of the RT320 tire. Whether you're riding trails, dunes, rocky terrain, or even pavement between rides, this package is built to handle it.

Upgrade your UTV with proven wheel and tire setups.
Browse more parts here: UTV Wheels & Tires Collection

Shop at RadUTVParts.com — use code RAD5 for 5% off your first order.

Are System 3 RT320 tires good for trails and mixed terrain?

Yes, the System 3 RT320 is one of the best mixed-terrain UTV tires for riders who want strong traction on loose terrain while still maintaining a smooth, quiet ride on hardpack and pavement. Its lightweight 8-ply radial construction and durable rubber compound make it ideal for aggressive trail riding and long-lasting performance.

ST-3 Wheels Built for Aggressive Styling and Strength

The System 3 ST-3 wheel features an edgy split 8-spoke design that looks aggressive without adding unnecessary weight. Its reinforced wheel lip and simulated beadlock styling give it a rugged appearance that matches modern sport and performance UTVs perfectly.

Built with a 1000-pound load rating, these wheels are made to handle hard riding conditions while still maintaining a clean, modern look.

Available Wheel Finishes

  • Matte Black
  • Bronze
  • Machined

Wheel Features

  • Split 8-spoke design for strength and reduced weight
  • Simulated beadlock styling
  • Heavy-duty inner and outer wheel lip
  • Large lug holes fit most hex-head lug nuts
  • 1000-pound load rating
  • Bolt-in center cap included
  • Lifetime limited warranty

Bolt Pattern Options

  • 4/156 — Polaris UTV models and Kawasaki KRX 1000
  • 4/137 — Can-Am UTV models and Honda Talon

RT320 Race & Trail Tire Performance

The System 3 RT320 was designed for riders who need a tire that can handle multiple terrain types without compromise. Its non-directional tread pattern hooks up well in loose terrain while remaining smooth and predictable on hardpack trails.

The lightweight 8-ply radial carcass provides durability without excessive weight, while the wide contact patch improves traction and ride comfort.

The RT320 also uses a high-mileage rubber compound to help extend tread life, making it a great choice for riders who put serious miles on their machines.

RT320 Tire Features

  • Race-ready mixed terrain design
  • Excellent traction on loose surfaces
  • Smooth and quiet ride on hardpack
  • 8-ply rated radial carcass
  • Wide contact patch for improved handling
  • High-mileage rubber compound
  • DOT marked

Available Tire Sizes

Size Ply Rating Weight Max Load
28x10R-14 8 Ply 33.8 lbs 740 lbs
30x10R-14 8 Ply 37.9 lbs 1000 lbs
32x10R-15 8 Ply 41.6 lbs 1000 lbs
33x9.5R-15 8 Ply 39.8 lbs 1020 lbs
35x9.5R-15 8 Ply 43.0 lbs 1020 lbs

Why This Setup Works So Well

The System 3 ST-3 and RT320 combo gives you a wheel and tire package that looks aggressive, performs across multiple terrains, and holds up under hard riding conditions. It’s a versatile setup that works equally well for trail riders, desert riders, and weekend adventure builds.