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Nexen
Nexen NEX Roadian ATX 255/70R18
Nexen NEX Roadian ATX 255/70R18
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Looking for a 255/70R18 all terrain tire? The Nexen Roadian ATX is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 255/70R18 means
In the size 255/70R18, 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 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.06 inches, turning roughly 629 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 18 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 113 — a maximum load of 2,535 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.
Load Range B corresponds to a 4-ply rating.
Specifications
| Size | 255/70R18 |
| Tire Type | All Terrain |
| Service Description | 113T |
| Load Index | 113 |
| Speed Rating | T |
| Load Range | B (4 Ply) |
| Section Width (mm) | 255 |
| Aspect Ratio | 70 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 12.5 |
| Treadwear | 600 |
| Traction Grade | A |
| Temperature Grade | B |
| UTQG | 600AB |
| Warranty | 65K |
Frequently asked questions
What kind of tire is the Nexen Roadian ATX?
The Nexen Roadian ATX in 255/70R18 is a all terrain tire.
What are the treadwear and warranty ratings on the Nexen Roadian ATX?
This tire carries a treadwear grade of 600, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 65K.
What does 113T mean on the Nexen Roadian ATX?
113T breaks down as load index 113 — rated for 2,535 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.
Keep shopping
Shop all 255/70R18 tires, see every Nexen Roadian ATX size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Nexen
- Model:
- NEX Roadian ATX
- Size:
- 255/70R18
- Aspect Ratio:
- 70
- Load Index:
- 113
- Load Range:
- B (4 Ply)
- Section Width:
- 255
- Service Description:
- 113T
- Speed Index:
- T
- Temperature:
- B
- Tire Rim Diameter:
- 18
- Tire Type:
- All Terrain
- Traction:
- A
- Tread Wear:
- 600
- Tread Depth:
- 12.5
- UQTG:
- 600AB
- Warranty:
- 65K
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