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Ironman
Ironman Iron RB 12 225/60R17
Ironman Iron RB 12 225/60R17
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Shop the Ironman RB 12 225/60R17 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 225/60R17 means
In the size 225/60R17, 225 is the section width in millimeters (8.86 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 135.0 mm (5.31 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 27.63 inches, turning roughly 730 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 service description on this tire decodes to a load index of 99 — a maximum load of 1,709 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 225/60R17 |
| Tire Type | Touring |
| Service Description | 99H |
| Load Index | 99 |
| Speed Rating | H |
| Load Range | SL |
| Section Width (mm) | 225 |
| Aspect Ratio | 60 |
| Overall Diameter (in) | 27.52 |
| Tread Depth (/32") | 11.1 |
| Treadwear | 440 |
| Traction Grade | A |
| Temperature Grade | B |
| UTQG | 440AB |
Frequently asked questions
What are the treadwear and warranty ratings on the Ironman RB 12?
This tire carries a treadwear grade of 440, traction grade A, temperature grade B under UTQG.
What does 99H mean on the Ironman RB 12?
99H breaks down as load index 99 — rated for 1,709 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
What kind of tire is the Ironman RB 12?
The Ironman RB 12 in 225/60R17 is a touring tire.
Keep shopping
Shop all 225/60R17 tires, see every Ironman RB 12 size, or view all tires at ThreePiece.us.
- BRAND:
- Ironman
- Model:
- IRON RB 12
- Size:
- 225/60R17
- Aspect Ratio:
- 60
- Load Index:
- 99
- Load Range:
- SL
- Section Width:
- 225
- Service Description:
- 99H
- Speed Index:
- H
- Temperature:
- B
- Tire Rim Diameter:
- 27.52
- Tire Type:
- Touring
- Traction:
- A
- Tread Wear:
- 440
- Tread Depth:
- 11.1
- UQTG:
- 440AB
- Warranty:
- N/A
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