The best steer tires for semi trucks in this list are the dedicated steer designs: the Ironman GEN2 I-61S, Continental Conti EcoPlus HS3+, Prinx PSL1 ET and Falken RI130 ECORUN. Match the size (295/75R22.5 or 11R22.5), the load index and the position rating to your steer axle before you compare brands. Four listings here are not steer-specific, so they are labeled Also consider. For drive and trailer positions, see our guide to the best tires for semi trucks.
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| Ironman GEN2 I-19A 295/75R22.5 146/143M H Commercial Tire |  | All-position | Tire Size: 295/75R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| FitParts Semi Truck Tires Set of 6 |  | 6-tire kit, not steer-only | Tire Size: 295/75R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| Ironman GEN2 I-61S 295/75R22.5 146/143M H Commercial Tire |  | Steer pattern | Tire Size: 295/75R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| Continental Conti EcoPlus HS3+ 295/75R22.5 149/146L H Commercial Tire |  | SmartWay verified | Tire Size: 295/75R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| Prinx PSL1 ET 11R22.5 146/143L H Commercial Tire |  | SmartWay verified | Tire Size: 11R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| FitParts Semi Truck Tires Set of 6 | | 6-tire kit, not steer-only | Tire Size: 11R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| Gladiator QR40-ST 245/70R19.5 135/133M H Commercial Tire |  | 19.5-inch medium-duty | Tire Size: 245/70R19.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| Firestone FD609 295/75R22.5 G |  | Drive tire, not steer | Tire Size: 295/75R22.5 | Construction: Radial | Ply Rating: 14-Ply (Load Range G) | VIEW LATEST PRICE | Read the details |
| Falken RI-130 ECORUN SW STEER Commercial Truck Tire – 11R22.5 146L |  | Steer tire | Tire Size: 11R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
| Hankook AH37 255/70R22.5 140 H |  | Smaller 22.5 all-position | Tire Size: 255/70R22.5 | Construction: Radial | Ply Rating: 16-Ply | VIEW LATEST PRICE | Read the details |
More Details on Our Top Picks
Ironman GEN2 I-19A 295/75R22.5 146/143M H Commercial Tire
The Ironman GEN2 I-19A is listed as an all-position tire, so it can run on a steer axle but is not a steer-only pattern. Retailer specs show a 295/75R22.5 radial in Load Range H (16-ply) with a 146/143 load index and a 120 PSI maximum. Listed features include stone ejectors, micro-siped center ribs for wet traction, curb guards on the sidewall and a nondirectional tread.
- Tire Size:295/75R22.5
- Load Range / Ply:H / 16-ply
- Load Index:146/143
- Max Pressure:120 PSI
- Position:All-position (steer, drive, trailer)
- Tread:Nondirectional
Pros
- Common 295/75R22.5 size with a 146/143 load index
- Stone ejectors and curb guards are listed
- Micro-siped center ribs for wet traction
Limits
- All-position pattern rather than a dedicated steer design
Also consider: FitParts Semi Truck Tires Set of 6 (295/75R22.5 kit with drive tires)
This is a six-tire kit, not a steer-tire pick. The Amazon listing describes 2 D622 steer tires and 4 D755 drive tires in 295/75R22.5, 16-ply radial. Only two of the six tires go on the steer axle. We could not confirm load index, maximum pressure or other D622/D755 specs from a manufacturer page, so check them on the listing before you order.
- Tire Size:295/75R22.5
- Kit:2 steer + 4 drive
- Ply Rating:16-ply (per listing)
- Load Index:Not confirmed
- Max Pressure:Not confirmed
Pros
- One order covers steer and drive positions
- Uses the common 295/75R22.5 size
Limits
- Only 2 of the 6 tires are steer tires
- Load index and max pressure not confirmed here
Ironman GEN2 I-61S 295/75R22.5 146/143M H Commercial Tire
The Ironman GEN2 I-61S is sold as a commercial steer tire in 295/75R22.5, Load Range H (16-ply), 146/143M. Retailer listings give 6,610 lb single and 6,005 lb dual capacity at a 120 PSI maximum. The description lists an optimized footprint aimed at even wear, stone ejectors that support retreadability and a fuel-efficient compound.
- Tire Size:295/75R22.5
- Load Range / Ply:H / 16-ply
- Load Index:146/143 (M speed)
- Max Load:6,610 lb single / 6,005 lb dual
- Max Pressure:120 PSI
- Position:Steer
Pros
- Dedicated steer tire in the common 295/75R22.5 size
- 6,610 lb single-tire load capacity
- Stone ejectors listed to support retreading
Limits
- Wear and mileage claims come from the seller description and are not independently verified
Continental Conti EcoPlus HS3+ 295/75R22.5 149/146L H Commercial Tire
The Conti EcoPlus HS3+ is a steer and all-position tire aimed at long-haul work. In 295/75R22.5 it is Load Range H (16-ply) with a 149/146 load index, which is the highest load rating in this list: 7,160 lb single and 6,610 lb dual, with a 123 PSI maximum. Listings describe it as SmartWay verified, retreadable and built with a cut- and tear-resistant compound.
- Tire Size:295/75R22.5
- Load Range / Ply:H / 16-ply
- Load Index:149/146 (L speed)
- Max Load:7,160 lb single / 6,610 lb dual
- Max Pressure:123 PSI
- Position:Steer / all-position
Pros
- Highest load index here (149/146)
- Listed as SmartWay verified for low rolling resistance
- Listed as retreadable
Limits
- The 123 PSI maximum is higher than the others, so set pressure from the load and inflation table for your axle
Prinx PSL1 ET 11R22.5 146/143L H Commercial Tire
The Prinx PSL1 ET is a steer-axle tire; here it is the 11R22.5 Load Range H (16-ply), 146/143L version. Prinx describes the PSL1ET line as an enhanced long-haul steer tire with continuous shoulder technology, decoupling grooves, groove siping, stone ejectors and SmartWay verification. Retailer pages do not list a maximum pressure, so use the sidewall marking.
- Tire Size:11R22.5
- Load Range / Ply:H / 16-ply
- Load Index:146/143 (L speed)
- Max Pressure:Check sidewall
- Position:Steer
- Overall Diameter:About 41.5 in (retailer)
Pros
- Dedicated steer tire in 11R22.5
- SmartWay verification listed by Prinx
- Decoupling grooves and stone ejectors listed
Limits
- 11R22.5 is taller than 295/75R22.5, so do not pair it with that size on one axle
Also consider: FitParts Semi Truck Tires Set of 6 (11R22.5 kit with drive tires)
This is the 11R22.5 version of the FitParts six-tire kit. The Amazon listing describes 2 D622 steer tires and 4 D755 drive tires in 16-ply radial construction. Like the other kit, only two tires are for the steer axle, and we could not confirm load index or maximum pressure from a manufacturer page.
- Tire Size:11R22.5
- Kit:2 steer + 4 drive
- Ply Rating:16-ply (per listing)
- Load Index:Not confirmed
- Max Pressure:Not confirmed
Pros
- One order covers steer and drive positions
- Uses the common 11R22.5 size
Limits
- Only 2 of the 6 tires are steer tires
- Load index and max pressure not confirmed here
Also consider: Gladiator QR40-ST 245/70R19.5 135/133M H Commercial Tire (19.5-inch medium-duty)
The QR40-ST is a 245/70R19.5 tire, a smaller 19.5-inch size used on medium-duty trucks. Most tractors run 22.5-inch or 24.5-inch wheels, so this is not a fit for a typical semi tractor. Retailer specs list it as all-position, Load Range H (16-ply), 135/133M, 120 PSI max, 4,805 lb single and 4,540 lb dual, with a 33.0 inch overall diameter.
- Tire Size:245/70R19.5
- Load Range / Ply:H / 16-ply
- Load Index:135/133 (M speed)
- Max Load:4,805 lb single / 4,540 lb dual
- Max Pressure:120 PSI
- Position:All-position
Pros
- Suits 19.5-inch medium-duty rigs
- 120 PSI max with a 16-ply build
Limits
- Wrong wheel size for most tractors
- All-position rather than steer-only
Also consider: Firestone FD609 295/75R22.5 G (drive tire)
The Firestone FD609 is a drive-axle tire, so it is not a steer pick. Retailer specs list it as Load Range G (14-ply), 144/141, 110 PSI maximum, with 6,175 lb single and 5,675 lb dual capacity. Listings describe an aggressive tread and a retreadable casing for regional and urban fleets. If you need drive tires, see our drive tires for semi trucks guide.
- Tire Size:295/75R22.5
- Load Range / Ply:G / 14-ply
- Load Index:144/141
- Max Load:6,175 lb single / 5,675 lb dual
- Max Pressure:110 PSI
- Position:Drive
Pros
- Retreadable casing listed
- Regional and urban fleet focus
Limits
- Drive tire, not intended for the steer axle
- Lower load index than the steer picks above
Falken RI-130 ECORUN SW STEER Commercial Truck Tire – 11R22.5 146L
The Falken RI130 ECORUN is a steer tire in 11R22.5, Load Range H (16-ply), 146/143L. Retailer specs list 6,610 lb single and 6,005 lb dual capacity at 120 PSI and a 41.3 inch overall diameter. Falken lists a contoured shoulder rib, a teardrop-shaped decoupling groove and a new tread compound. The SW in the Amazon title suggests SmartWay, but the retailer page we checked does not state it, so confirm before you rely on it.
- Tire Size:11R22.5
- Load Range / Ply:H / 16-ply
- Load Index:146/143 (L speed)
- Max Load:6,610 lb single / 6,005 lb dual
- Max Pressure:120 PSI
- Position:Steer
Pros
- Dedicated steer tire with a 146/143 load index
- Decoupling groove and contoured shoulder ribs listed
- Common 11R22.5 size
Limits
- SmartWay status not shown on the spec page checked
Hankook AH37 255/70R22.5 140 H
The Hankook AH37 is an all-position tire designed for regional-haul truck and bus use, in the smaller 255/70R22.5 size. Retailer specs list Load Range H (16-ply), 120 PSI maximum, 5,510 lb single and 5,070 lb dual capacity (140/137), and a 36.7 inch overall diameter. It fits 22.5-inch rims. Check that 5,510 lb per tire covers your steer axle rating before choosing it.
- Tire Size:255/70R22.5
- Load Range / Ply:H / 16-ply
- Load Index:140/137
- Max Load:5,510 lb single / 5,070 lb dual
- Max Pressure:120 PSI
- Position:All-position (regional haul)
Pros
- Suits regional-haul truck and bus applications
- Advanced siping listed for wet conditions
Limits
- Lower load capacity than the 295/75R22.5 and 11R22.5 picks
- Smaller size than most tractors run
Spec Comparison of the Steer Tire Picks
Values come from retailer and manufacturer listings and can differ by listing, so confirm them on the product page before you buy.
| Tire | Size | Load range / ply | Load index (single/dual) | Max PSI | Position |
|---|---|---|---|---|---|
| Ironman GEN2 I-61S | 295/75R22.5 | H / 16-ply | 146/143 | 120 | Steer |
| Continental Conti EcoPlus HS3+ | 295/75R22.5 | H / 16-ply | 149/146 | 123 | Steer / all-position |
| Ironman GEN2 I-19A | 295/75R22.5 | H / 16-ply | 146/143 | 120 | All-position |
| Falken RI130 ECORUN | 11R22.5 | H / 16-ply | 146/143 | 120 | Steer |
| Prinx PSL1 ET | 11R22.5 | H / 16-ply | 146/143 | Not listed | Steer |
| Hankook AH37 | 255/70R22.5 | H / 16-ply | 140/137 | 120 | All-position |
| Gladiator QR40-ST | 245/70R19.5 | H / 16-ply | 135/133 | 120 | All-position |
| Firestone FD609 | 295/75R22.5 | G / 14-ply | 144/141 | 110 | Drive |
| FitParts 6-tire kits | 295/75R22.5 or 11R22.5 | 16-ply (listing) | Not confirmed | Not confirmed | 2 steer + 4 drive |
How to Choose Steer Tires for a Semi Truck
Match the size and load index
Start with the size on your current steer tires or your fleet spec. The 295/75R22.5 and 11R22.5 sizes in this guide are not the same height: listings show about 39.9 inches overall diameter for the Ironman and Continental 295/75R22.5 tires and about 41.3 inches for the Falken in 11R22.5. Keep both steer tires on an axle the same size.
Then check the load index. The first number is for a single tire and the second is for a dual. A 146 index equals 6,610 lb per tire and a 149 equals 7,160 lb, per the listings above. Compare it with your steer axle rating, not your total weight.
Check the position rating
Dedicated steer tires (Ironman I-61S, Continental HS3+, Prinx PSL1 ET, Falken RI130) are built for the front axle. All-position tires (Ironman I-19A, Hankook AH37, Gladiator QR40-ST) are marketed for steer, drive and trailer use, so confirm steer approval with the manufacturer. Do not put a drive-only tire on the steer axle.
Know the tread-depth rules
Under 49 CFR 393.75, steer-axle tires need at least 4/32 inch of tread, and other positions need 2/32 inch. Replace a tire sooner if you see sidewall cuts, bulges, exposed cord or irregular wear.
Set pressure for the axle load
Use the tire maker’s load and inflation table for your real axle load, and check pressure cold with a good gauge. The sidewall maximum (110 to 123 PSI on the tires above) is a limit, not a target. Our truck tire pressure guide and semi truck tire inflator guide cover the basics.
Weigh efficiency and retreading
The Continental HS3+ and Prinx PSL1 ET are listed as SmartWay verified for low rolling resistance. Stone ejectors and a retreadable casing, listed for several tires above, matter if your fleet retreads. Ask your tire dealer about your retread program.
Safety Notes for Steer Tire Replacement
- Have a qualified tire shop mount and balance steer tires.
- Check alignment if the old tires wore unevenly.
- Torque lug nuts to the vehicle maker’s spec.
- Never exceed the tire’s load or pressure rating.
Frequently Asked Questions
What size steer tires does a semi truck use?
Two common sizes are 295/75R22.5 and 11R22.5, both for 22.5-inch wheels. Check the size on your current steer tires or your fleet spec, because the two sizes differ in height and should not be mixed on one axle.
What is the minimum tread depth for semi steer tires?
Federal rules (49 CFR 393.75) require at least 4/32 inch of tread on steer-axle tires and 2/32 inch on other positions. Replace a tire sooner if it has sidewall damage, bulges or exposed cord, whatever the tread depth.
Can I use an all-position tire on the steer axle?
Yes, if the manufacturer lists it for steer use. All-position tires such as the Ironman I-19A and Hankook AH37 are marketed for steer, drive and trailer positions, but a drive-only tire like the Firestone FD609 is not meant for the steer axle. Confirm in the manufacturer application guide.
What does a 146/143 load index mean?
The first number is the load index for a single tire and the second is for a tire in a dual pair. For 146/143, listings show 6,610 lb single and 6,005 lb dual. Steer tires run as singles, so compare the first number with your steer axle rating divided by two.
Can I mix steer tire sizes on the same axle?
No, keep sizes matched. A 295/75R22.5 is about 39.9 inches tall and an 11R22.5 is about 41.3 inches, per retailer specs, which changes handling. Ask your tire shop or the manufacturer about mixing brands or tread patterns.
How should I set steer tire pressure?
Use the tire maker’s load and inflation table for your actual axle load, and check pressure with the tires cold. The maximum on the sidewall is a limit, not a target.
Which Steer Tire Should You Buy?
For 295/75R22.5, the Ironman I-61S and Continental HS3+ are the dedicated steer choices, and the HS3+ has the higher load index (149/146). For 11R22.5, the Falken RI130 and Prinx PSL1 ET are the dedicated steer tires. Treat the all-position, drive-tire and 6-tire-kit listings as alternatives only when they match your axle, size and rating. Confirm the load index, pressure and position rating before you order.
