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Ironman
Ironman IRON All Country HT 255/70R16
Ironman IRON All Country HT 255/70R16
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The Ironman All Country HT in 255/70R16 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 255/70R16 means
In the size 255/70R16, 255 is the section width in millimeters (10.04 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 178.5 mm (7.03 in) — R denotes radial construction, and 16 is the wheel diameter in inches. That works out to an overall diameter of about 30.06 inches, turning roughly 671 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
The manufacturer lists the overall diameter of this specific tire as 29.8 inches — when clearance is tight, go by the published figure rather than the nominal size math.
The service description on this tire decodes to a load index of 111 — a maximum load of 2,403 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.
Specifications
| Size | 255/70R16 |
| Tire Type | Highway |
| Service Description | 111T |
| Load Index | 111 |
| Speed Rating | T |
| Load Range | SL |
| Section Width (mm) | 255 |
| Aspect Ratio | 70 |
| Overall Diameter (in) | 29.8 |
| Tread Depth (/32") | 10.5 |
| Treadwear | 500 |
| Traction Grade | A |
| Temperature Grade | B |
| UTQG | 500AB |
Frequently asked questions
What does 111T mean on the Ironman All Country HT?
111T breaks down as load index 111 — rated for 2,403 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.
What kind of tire is the Ironman All Country HT?
The Ironman All Country HT in 255/70R16 is a highway tire.
What are the treadwear and warranty ratings on the Ironman All Country HT?
This tire carries a treadwear grade of 500, traction grade A, temperature grade B under UTQG.
Keep shopping
Shop all 255/70R16 tires, see every Ironman All Country HT size, or view all tires at ThreePiece.us.
- BRAND:
- Ironman
- Model:
- IRON All Country HT
- Size:
- 255/70R16
- Aspect Ratio:
- 70
- Load Index:
- 111
- Load Range:
- SL
- Section Width:
- 255
- Service Description:
- 111T
- Speed Index:
- T
- Temperature:
- B
- Tire Rim Diameter:
- 29.8
- Tire Type:
- Highway
- Traction:
- A
- Tread Wear:
- 500
- Tread Depth:
- 10.5
- UQTG:
- 500AB
- Warranty:
- N/A
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