ST175/80D13 Trailer Tire and 13x4.5 5-Lug Rim 2-Pack - Durable Load

In this review of the 2-pack ST175/80D13 trailer tires on 13x4.5 in 5-lug rims, the bottom line is straightforward: this kit is for owners of small trailers, campers, boat trailers and utility haulers who need a rugged, load-rated replacement set that fits common 13 in rims. The reviewer found the tires reassuringly stiff and built for heavy towing, with a full nylon cap ply and a Load Range C 6PR rating that supports up to 1360 lbs per tire, making this a practical choice when durability and load capacity matter most.

Key Features

• Load Capacity: Each ST175/80D13 tire is rated to carry 1360 lbs, so buyers can confidently spec this pair for heavier small-trailer loads.
• Tire Dimensions: The 175mm section width and 23.74 in overall diameter give predictable rolling circumference and compatibility with many 13 in trailer setups.
• Rim Fitment: The included 13x4.5 in rim with 5-lug 4.5 in PCD and 3.19 in center bore simplifies installation when those measurements match your trailer hub.
• Construction: Full nylon cap ply and a premium rubber compound provide puncture resistance and longer life under repetitive load cycles.
• Tread and Traction: Deeper tread patterns help distribute load and improve traction, reducing stress on individual tires during towing.
• Versatile Use: Designed for travel trailers, utility trailers, boat trailers and light haulers where a robust ply-rated tire is required.

Who It's For

This set is best for trailer owners who already use or plan to use 13 in rims with a 5-lug 4.5 in PCD and an 81mm center bore, and who need a heavy-duty, replacement tire and wheel combination rated for moderate to heavy loads. If you tow campers, small boats, landscaping or cargo trailers and value reinforced construction, this pair provides a straightforward upgrade.

Those who should look elsewhere include owners of trailers with different bolt patterns, narrower or wider rims, or who require higher speed-rated or higher load-range tires; always verify rim PCD, center bore and overall tire diameter against your trailer manual before purchasing.

Pros & Cons

Pros

• Good load capacity with a 6PR/Load Range C rating, supporting heavier trailer payloads per tire.
• Complete tire-and-rim package (13x4.5 in rim) reduces guesswork if dimensions match the trailer hub.
• Durable construction with full nylon cap ply and reinforced sidewalls for puncture resistance and longer life.

Cons

• Only suitable if the trailer uses the exact 5-lug 4.5 in PCD and 3.19 in center bore; incompatible hubs require different rims.

Specifications

Tire Size	ST175/80D13
Load Capacity	1360 lbs per tire
Section Width	175 mm (6.89 in)
Overall Diameter	23.74 in (603 mm)
Ply Rating / Load Range	6PR, Load Range C
Rim Size	13 x 4.5 in
Wheel Fitment	5 lug on 4.5 in PCD, center bore 3.19 in (81 mm)

Our Verdict

The 2-pack ST175/80D13 tires on 13x4.5 in 5-lug rims are a solid value for small-trailer owners who confirm fitment first; they combine a dependable 1360 lb capacity, reinforced nylon construction and a ready-to-mount rim to simplify replacements. Buy this kit if your trailer hubs match the 4.5 in PCD and 3.19 in center bore and you need a durable, load-rated solution without extra fuss.

Frequently Asked Questions

Will these wheels fit my trailer?
They will fit only if your trailer uses a 5-lug pattern with a 4.5 in PCD and a center bore of about 3.19 in; always verify against your trailer manual.

What load can each tire carry?
Each ST175/80D13 tire is rated to carry 1360 lbs with a 6PR Load Range C rating.

Are these tires suitable for boat trailers and campers?
Yes, the reinforced construction and tread design make them appropriate for boat trailers, campers, cargo and utility trailers when fitment matches.