Answering the search for a reliable B78-13 trailer tire equivalent, this guide highlights five ready-to-mount trailer tire and wheel assemblies built around ST175/80D13 and 175/80D13 sizing. These sets are ideal for utility, boat, camper, and light trailers. The top picks emphasize balanced load ratings, standard 5-lug on 4.5″ hubs, and DOT-approved assemblies for safe highway towing. Best for replacing worn tires without special tools, these options are suited for DIY trailer maintenance and periodic tire upgrades.
Summary table of chosen products:
| Product | Wheel Type | Load | Bolt Pattern | Key Benefit |
|---|---|---|---|---|
| eCustomrim 2-Pack ST175/80D13 White Wheel | White Spoke Wheel | 1360 lbs | 5 Lug on 4.5″ | Fast dual-pack replacement |
| eCustomrim 2-Pack Black Wheel | Black Wheel | 1360 lbs | 5 Lug on 4.5″ | Versatile color option |
| Free Country 8-Ply Silver Spoke Wheel | Silver Spoke Rim | 960-1360 lbs (per tire) | 5 Lug on 4.5″ | Longer tread life claim |
| KORVYAL 6-Ply White Spoke Wheel | White Spoke Rim | 1360 lbs | 5 Lug on 4.5″ | Ready-to-mount two-pack |
| eCustomrim Radial 13-Inch Wheel | White Spoke Wheel | 1360 lbs | 5 Lug on 4.5″ | Radial option with longer warranty |
eCustomrim White Wheel 2-Pack ST175/80D13
The set pairs bias-ply trailer tires with a 13×4.5″ white spoke rim, rated for 1360 lbs and 50 PSI. It uses a 5-on-4.5″ bolt pattern with a 3.19″ center bore, designed for stable towing and consistent tire operation. The assembly is DOT-approved and sold as a ready-to-use unit with a 2-year warranty and roadside assistance. Best for trailers needing a clean, classic white wheel and straightforward installation.
Best for: trailer owners who want an affordable, all-in-one replacement with basic roadside support. Choose this if you prefer a white rim aesthetic and a DOT-approved assembly that travels well on standard hauls. Limitation: bias-ply tires may not match radial tread longevity in every on-road scenario.
eCustomrim Black Wheel 2-Pack ST175/80D13
This two-pack uses the same tire dimensions and fitments as the white version but features a black wheel finish. The tires are bias ply with a 24.4″ overall diameter, 50 PSI max, and Load Range C. The rim is 13×4.5″ with 3.19″ center bore and 5-lug on a 4.5″ pattern; DOT-approved and road-ready with a 2-year warranty with roadside assistance. Best for: users who want a darker wheel aesthetic with the same dependable specs. Caution: finish may show scuffs more readily under heavy use.
Free Country 8-Ply 13-Inch Wheel Set
This set emphasizes durability with an 8-ply rated tire and a 96W load index, suitable for speeds up to 75 mph. The 5-lug on 4.5″ bolt pattern matches common trailers, with a silver spoke wheel styling. Best for: owners seeking longer tread life and a higher ply rating for more demanding hauling. Limitation: the higher load index is not always necessary for lightweight trailers, which can impact ride feel in some conditions.
KORVYAL 6-Ply White Spoke Wheel Set
Designed as a ready-to-mount two-pack with 6-ply construction and 1360 lbs capacity per tire, these 13-inch white spoke wheels fit standard 5-lug on 4.5″ hubs. The package includes tires mounted on rims for quick replacement. Best for: trailer owners who want a straightforward, heavy-duty upgrade with minimal installation steps. Caution: verify your current axle bore and hub compatibility to avoid improper fit.
eCustomrim Radial 13-Inch Wheel Set
This assembly offers a radial tire option with a 23.9″ overall diameter and Load Range C, rated at 1360 lbs per tire and 50 PSI. The 13×4.5″ rim maintains a 5-lug on 4.5″ bolt pattern, with a 3.19″ center bore. DOT-approved and backed by a 6-year warranty with roadside assistance. Best for: owners seeking improved ride comfort and better heat management in longer trips. Limitation: radial tires may have different wear patterns than bias-ply on rough terrain.
Buying Guide
What should I check before buying a trailer tire rim assembly?
- Tire type: Bias ply vs radial. Bias ply is common and affordable; radial tires often provide smoother rides and longer life on highways.
- Load rating and PSI: Ensure the per-tire load rating matches your trailer’s gross weight; do not exceed the tire’s maximum PSI.
- Wheel size and bolt pattern: Confirm 13-inch rims with 5 lug on 4.5″ hub pattern; verify center bore clearance for your axle.
- DOT approval and warranty: DOT-approved assemblies offer compatibility and safety assurances; longer warranties add roadside support value.
- Installation readiness: Some sets come mounted on rims; others require mounting tires to rims. Consider your comfort with DIY mounting or hiring a shop.
- Aesthetic and finish: White vs black wheels affect appearance; color may influence visibility and cleaning needs on the road.
How to compare these options quickly?
- Best for value and quick replacement: White or black 2-pack assemblies with bias ply tires and standard rims.
- Better for durability on longer trips: 8-ply or higher options, with radial tires and longer warranties.
- Choose this if you want easy installation: Ready-to-mount wheel-tire assemblies reduce mounting time.
- Avoid this if your trailer uses non-standard bolt patterns: Verify hub compatibility before purchasing.
FAQ
- What is the difference between bias ply and radial tires for trailers?
Bias ply tires are typically more affordable and adequate for light towing, while radial tires offer smoother rides and longer tread life on highway driving. - Can I mix tire strengths on my trailer wheels?
It’s best to match tire type and load rating across the axle to maintain even handling and load distribution. - Do these assemblies come with installation hardware?
Some sets are ready-to-mount with tires already on rims; others may require you to mount tires to rims separately. - Is a higher ply rating necessary for all trailers?
Not always; 6-ply or higher is beneficial for heavy or rough-use trailers, but lighter utility trailers may perform well with standard ply ratings.