Summit Hi-Road ST Tire

Summit Hi-Road ST ST235/85R16

4.8(256 store reviews)
$213.93 each
$855.72 set
or 4 interest-free payments of $213.93 Shop Pay Klarna Afterpay interest-free when paid on time
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Free Shipping US All orders
Fitment Guarantee Risk free
Package Options Save when you build a package
Authorized Dealer 100% brand new wheels
Category
Trailer
Load index
125/1213,638 lbs per tire
Speed rating
LUp to 75 mph
Know your tire

About the Summit Hi-Road ST

Reliable Towing, Mile After Mile

Best forThe Summit Hi-Road ST is ideally suited for light-duty trailers — including utility, boat, and cargo trailers — where consistent load stability and highway durability are the primary requirements.

The Summit Hi-Road ST is engineered specifically for trailer applications, delivering the stable, predictable handling that towing demands. Designed to work in harmony with a range of trailer setups — from utility hauls to boat trailers — this tire provides consistent load-bearing performance at highway speeds. Drivers who pair their rigs with trusted wheel brands like Cragar, American Racing, or Summit Racing wheel setups will appreciate the Hi-Road ST's dependable road manners under sustained load.

The Hi-Road ST features a purpose-built Special Trailer (ST) tread pattern optimized for straight-line stability and even wear under the unique stress patterns that trailer tires experience. The compound is formulated to resist the heat buildup common during extended highway towing, while the tread geometry helps channel water away from the contact patch for improved wet-road confidence. Its construction prioritizes structural integrity and load capacity over sporty performance metrics.

The numbers

Specifications

Size & Dimensions
Brand Summit
Tire Model Hi-Road ST
Part Number SMTST1970
Tire Size ST235/85R16
Section Width 235
Aspect Ratio 85
Rim Diameter 16
Overall Diameter 31.73
Overall Width 9.25
Performance
Speed Rating L
Load Index 125/121
Load Range E
Ply Rating 10
Max Inflation Pressure 80
Tread Depth 10
Ratings
Mileage Warranty Manufacturer's Warranty
Category
Tire Type Trailer
Good to know

Questions about this tire

What does ST235/85R16 125/121L mean?

235 is the tread width in millimeters, 85 means the sidewall is 85% of that width, and R16 is the 16-inch rim it mounts on. 125 is the load index (3,638 lbs per tire), and L is the speed rating (up to 75 mph).

The brand

About Summit Wheels

Summit is a value-oriented wheels brand offering aftermarket alloy wheels primarily aimed at budget-conscious consumers and everyday drivers. The brand focuses on delivering functional, presentable wheel designs without the premium pricing associated with forged or luxury-tier manufacturers.

Shop all Summit tires →

Vehicle Compatibility

Buying from TFS Wheels

Shipping, returns & guarantees

Authorized Dealer — 100% Brand New Wheels & Tires

TFS Wheels is an authorized dealer for every brand we carry. Every wheel and tire we ship is brand new, unused, and packaged in its original manufacturer's box. We never sell refurbished, demo, or return-stock product. All manufacturer warranties apply and our warehouse is staffed by people who only handle wheels and tires — no in-transit damage, no test-fits, no surprises.

Free Shipping (Lower 48)

Free shipping on every order — wheels, tires, and accessories — to the contiguous United States. No minimum order, no hidden fees.

Standard delivery is 4–7 business days; expedited is 1–4 business days. Orders placed before 1:00 PM ET typically ship the same day. We do not ship internationally or to PO boxes.

Fitment Guarantee

If a wheel or tire marked "Direct Fit" or "Aftermarket Fit" for your vehicle arrives and does not fit as expected, we cover both the restocking fee and return shipping. The same applies if the bolt pattern does not match — provided your vehicle information was submitted at checkout.

To qualify for the guarantee, enter your year, make, model, and submodel before placing the order.

Manufacturer's Warranty

Every wheel and tire is covered by the full manufacturer's warranty against defects in materials and workmanship. Coverage terms vary by brand — most cover structural integrity for the life of the wheel and finish for 1 to 2 years from purchase. If you ever have a warranty question, contact us first; we work directly with the manufacturer on your behalf so you don't have to.

Accessories Included with Your Order

When you submit your vehicle information at checkout, the right lug nuts and (if needed) hub-centric rings are automatically added to your cart in the correct sizes — no guessing, no separate ordering.

TPMS sensors are also available in the cart. We program each sensor to your vehicle's exact year, make, model, and submodel before shipping, so they arrive ready to sync with your truck or car the moment they're installed. This typically saves customers the dealer or installer's programming fees, which often run several dozen dollars per wheel.

Returns

Returns are accepted within 30 days of purchase on items in new, unused condition. A 25% restocking fee applies to general (change-of-mind) returns, and the buyer covers return shipping.

The restocking fee and return shipping are waived for incorrect items, transit damage, or fitment issues when vehicle information was provided at checkout. Single wheels, single tires, mounted items, special orders, and accessories (lug nuts, locks, hub-centric rings, TPMS sensors, installation kits) are final sale.

Verified buyers

Owner Reviews