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Nexen
Nexen NEX N'Fera AU7 215/45R18
Nexen NEX N'Fera AU7 215/45R18
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Looking for a 215/45R18 high performance tire? The Nexen N'Fera AU7 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 215/45R18 means
In the size 215/45R18, 215 is the section width in millimeters (8.46 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 96.8 mm (3.81 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.62 inches, turning roughly 787 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 89 — a maximum load of 1,279 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 215/45R18 |
| Tire Type | High Performance |
| Service Description | 89W |
| Load Index | 89 |
| Speed Rating | W |
| Section Width (mm) | 215 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 9 |
| Treadwear | 500 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 500AAA |
| Warranty | 50K |
Frequently asked questions
What kind of tire is the Nexen N'Fera AU7?
The Nexen N'Fera AU7 in 215/45R18 is a high performance tire.
What are the treadwear and warranty ratings on the Nexen N'Fera AU7?
This tire carries a treadwear grade of 500, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 50K.
What does 89W mean on the Nexen N'Fera AU7?
89W breaks down as load index 89 — rated for 1,279 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Keep shopping
Shop all 215/45R18 tires, see every Nexen N'Fera AU7 size, or view all tires at ThreePiece.us.
- BRAND:
- Nexen
- Model:
- NEX N'Fera AU7
- Size:
- 215/45R18
- Aspect Ratio:
- 45
- Load Index:
- 89
- Load Range:
- N/A
- Section Width:
- 215
- Service Description:
- 89W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 18
- Tire Type:
- High Performance
- Traction:
- AA
- Tread Wear:
- 500
- Tread Depth:
- 9
- UQTG:
- 500AAA
- Warranty:
- 50K
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