SET OF 4 EVOLUXX R781 ST Trailer Tire and CW515 15X5, 5X4.5 5 LUG RHINO ALUMINUM RIMS
This is a set of four Evoluxx R781 ST radial trailer tires mounted on Rhino CW515 aluminum wheels. The wheels are 15x5 with a 5-lug, 5x4.5 bolt pattern — the most common fitment on single- and tandem-axle utility, boat, and travel trailers. The tires carry the ST205/75R15 size designation. One order replaces all four positions on a tandem-axle trailer.
Specifications
| Tire Size | ST205/75R15 |
|---|---|
| Construction | Radial |
| Tire Model | Evoluxx R781 (ST trailer tire) |
| Rim Size | 15x5 |
| Bolt Pattern | 5x4.5 (5x114.3 mm) |
| Lug Count | 5 |
| Wheel Material | Aluminum — Rhino CW515 |
| Sold As | Set of 4, tires mounted on wheels |
Key Features
- Bolt-on ready: tires arrive mounted on the wheels, no tire shop visit needed
- Common fitment: 5x4.5 pattern covers most 15-inch single- and tandem-axle trailers
- Trailer-specific tires: ST-rated radial construction, built for towing rather than passenger use
- Full-trailer set: four assemblies cover a tandem-axle trailer in one order
What's in the Box
- 4 x Evoluxx R781 ST205/75R15 trailer tires, mounted on 4 x Rhino CW515 15x5 aluminum wheels
Typical Use Cases
- Re-shoeing a tandem-axle utility or cargo trailer in one purchase
- Boat trailers that need a matched set of tires and corrosion-resistant aluminum wheels
- Travel trailers replacing aged-out tires and dated wheels together
FAQ
Do these assemblies need to be balanced before use?
Trailer wheels are generally not balanced the way passenger-car wheels are, since the trailer axle carries load rather than steering input. If you want extra smoothness at highway speed, balancing beads inside the tire are a simple option — no weights required.
How do I confirm my trailer takes a 5x4.5 bolt pattern?
Count the lug holes — you need 5. Then measure from the center of one hole to the outer edge of the hole two positions away; on a 5-lug wheel that reading approximates the pattern diameter and should be about 4.5 inches. Call us with your trailer model if you would rather have us confirm it.
Are ST tires different from regular car tires?
Yes. ST (Special Trailer) tires use stiffer sidewalls sized for trailer loads and are not designed for drive or steering axles. Keep them on the trailer, keep them inflated to the pressure marked on the sidewall, and they will track more stably than a passenger tire in the same spot.
Not sure about your bolt pattern? Read our 1-minute measuring guide before ordering.