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Ironman
Ironman Iron RB 12 NWS 235/75R15
Ironman Iron RB 12 NWS 235/75R15
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Looking for a 235/75R15 touring tire? The Ironman RB 12 NWS is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 235/75R15 means
In the size 235/75R15, 235 is the section width in millimeters (9.25 in), 75 is the aspect ratio — the sidewall stands 75% as tall as the tire is wide, or 176.2 mm (6.94 in) — R denotes radial construction, and 15 is the wheel diameter in inches. That works out to an overall diameter of about 28.88 inches, turning roughly 698 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 105 — a maximum load of 2,039 lbs per tire. The speed symbol S corresponds to a maximum sustained speed of 112 mph.
Specifications
| Size | 235/75R15 |
| Tire Type | Touring |
| Service Description | 105S |
| Load Index | 105 |
| Speed Rating | S |
| Load Range | SL |
| Section Width (mm) | 235 |
| Aspect Ratio | 75 |
| Overall Diameter (in) | 28.86 |
| Tread Depth (/32") | 10.2 |
Frequently asked questions
What kind of tire is the Ironman RB 12 NWS?
The Ironman RB 12 NWS in 235/75R15 is a touring tire.
Will 235/75R15 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 235/75R15, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 235/75R15 tire in stock to compare options.
What does 105S mean on the Ironman RB 12 NWS?
105S breaks down as load index 105 — rated for 2,039 lbs per tire — with an S speed rating, good for a maximum sustained 112 mph.
Keep shopping
Shop all 235/75R15 tires, see every Ironman RB 12 NWS size, or view all tires at ThreePiece.us.
- Brand:
- Ironman
- Model:
- IRON RB 12 NWS
- Size:
- 235/75R15
- Aspect Ratio:
- 75
- Load Index:
- 105
- Load Range:
- SL
- Section Width:
- 235
- Service Description:
- 105S
- Speed Index:
- S
- Temperature:
- N/A
- Tire Rim Diameter:
- 28.86
- Tire Type:
- Touring
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 10.2
- UQTG:
- N/A
- Warranty:
- N/A
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