For delivery estimate

Trailer King RST ST235/80R16 F/12PLY

Trailer - Radial

Rims Not Included

easy test score

8.1 Excellent

Availability

In Stock

Per Tire:

$113.67

Was $142.09

$13.60

Estimated Delivery

Shipping Cost

Installation available

Total

See full specs

Authorized distributor of

Local installation

1,000s of locations

US based customer support

Se habla español

Category

Trailer - Radial

RST25T

This listing is for new Trailer King RST ST235/80R16 F/12PLY Tires. Manufacturer part number: RST25T.

The Trailer King RST is a specialty trailer radial, engineered for the one job a trailer tire actually has: carrying load at highway speed without building up heat. It is not a light truck tire and should never be mounted on a tow vehicle, no matter how close the size looks.

The construction reflects that job. A nylon overlay on most sizes holds the casing together at speed, and a shallow, even tread depth runs cooler than a deep-tread tire would. The ribbed pattern tracks straight behind the tow vehicle and resists the side scrub that chews up trailer tires in tight turns and campground maneuvering. Multiple load ranges are offered so you can match the tire to the loaded weight of your trailer rather than guessing.

The question every trailer owner really has is whether it will blow out, and the answer is mostly in your hands. Trailer tires almost never wear out. They fail from heat, from being run underinflated, and from age. Three things prevent that. Inflate to the maximum pressure molded on the sidewall before every trip, checked cold, not to the pressure you would run on a truck. Select a load range that covers your trailer loaded, with margin, not empty. And replace the set on age rather than tread depth, because a trailer that sits for months between trips is aging its tires the whole time. Also check the speed rating on your specific size and stay under it. A tire that looks perfect can still be five years old and unsafe.

Best-suited for: Utility trailers, boat trailers, travel trailers, car haulers, and equipment trailers.

Tire Best Features:

Nylon overlay construction on most sizes for high-speed casing strength
Shallow, even tread depth engineered to limit heat buildup
Ribbed pattern tracks straight and resists cornering scrub
Multiple load ranges for light through heavy trailer applications
Trailer-specific build, not a repurposed light truck tire

For over 2 decades, Tires Easy has served the online tire community. With over 8 million tires sold, 43K+ 5-star reviews, and tens of thousands of tires just one click away, there’s a reason why millions of customers choose Tires Easy as their online tire destination.

8+ Million Tires

Sold Online

Over 43K 5-star

Customer Reviews

20+ Years

In Business

Free fast delivery

Get expedited shipping

45 day returns

Buy tires without the risk

Buy now, pay later

Convenient financing options

Local installation

Install at local service centers

About the Manufacturer:

Trailer King is a specialized trailer tire brand developed by TBC Corporation, a prominent North American tire supplier established in 1956. Designed specifically for towable applications, Trailer King manufactures ST (Specialty Trailer) radial tires engineered to manage heavy load distribution, lateral sway, and high center-of-gravity demands. TBC Corporation maintains rigorous quality assurance across its global manufacturing network, ensuring every tire meets stringent U.S. Department of Transportation (DOT) and highway safety standards. Trusted by major trailer OEMs, Trailer King delivers certified reliability across utility, cargo, RV, and marine transport sectors.

Chat

Start chat

Call

(855) 770-3279

We can help! Our trained experts have years of tire fitment experience and are available to answer questions.

Name

Brand

Size

Price

Easy test score

Specifications

Specs

Value

Description

Load Index

127/122

The load index (LI) is a 2- or 3-digit number that correlates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximum load of 1,201 lbs. In this particularly example, 4 tires (each with a load index of 87) can carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimum load index.

Speed Rating
A guide to buying tires

Speed rating (SR) indicates the maximum speed the tire can achieve. Higher speed ratings are typically associated with better handling capabilities. Refer to your vehicle owner's manual for the recommended minimum speed rating.

Load Range/Ply Rating
Types of tires

F/12PLY

Ply rating, more commonly referred to as load range, represents the strength and durability of the tire. Higher ratings may indicate your tires can handle heavier loads.

Max Single Load(lbs)

3860

The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.

Max Single Air Pressure(PSI)

100

The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.

Tread Depth

8.0

The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.

Tread Design

Nondirectional

The pattern of the grooves, lugs, voids, and sipes on a tire's surface. This design affects the tire's traction, handling, and noise characteristics. Common types include symmetrical (uniform pattern across the tire), asymmetrical (different patterns on the inside and outside for varied road conditions), and directional (designed to rotate in one direction for improved wet traction and hydroplaning resistance).

Measured Rim Width

6.5

The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.

Section Width

9.3

The measurement from sidewall to sidewall.

Overall Diameter

30.8

The height of the tire when fully inflated.

Manufacturer Part Number

RST25T

Manufacturer part number (sku)

Financing

You can pre-qualify to finance your tires, or you can simply choose Affirm at check-out. Fill out your information and choose the monthly payment that works best for you!

Select 3, 6 or 12 monthly payments, with rates from 10% - 36% APR. 18 months financing available for orders over $1000.00

Checking your eligibility won't affect your credit. You will receive an immediate answer from Affirm.

Affirm has no hidden fees or costs and is completely secure.
Quick and easy, real tire financing, real fast! You can apply in advance and know you can shop for tires when you are ready.

To learn more visit Buy With Affirm or read their convenient Affirm FAQ's. All credit decisions are made by Affirm.

To contact Affirm regarding your account, please call 1-855-423-3729.

No hidden fees

Affirm has no hidden fees or costs and is completely secure

Flexible

You choose the payment schedule that works for you

Quick and easy

Fill out your information and get a real-time decision

Pay over time

Choose the payment plan that works best for you

Learn more about Affirm tire financing options

No Credit? No problem!

Lease your tires with Katapult!

With a small down payment, and easy payments you can lease your tires. Payments are coordinated with your payday. Read more here about how Katapult works.

No credit required

Simple initial payment

No late fees ever

Payoff early is desired

Learn more about Katapult lease-to-own tire financing