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Nexen
Nexen NEX N'Fera AU7 245/45R17
Nexen NEX N'Fera AU7 245/45R17
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Shop the Nexen N'Fera AU7 245/45R17 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 245/45R17 means
In the size 245/45R17, 245 is the section width in millimeters (9.65 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 110.2 mm (4.34 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 25.68 inches, turning roughly 785 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 17 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 99 — a maximum load of 1,709 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 245/45R17 |
| Tire Type | High Performance |
| Service Description | 99W |
| Load Index | 99 |
| Speed Rating | W |
| Load Range | XL |
| Section Width (mm) | 245 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 17 |
| Tread Depth (/32") | 9 |
| Treadwear | 500 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 500AAA |
| Warranty | 50K |
Frequently asked questions
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 99W mean on the Nexen N'Fera AU7?
99W breaks down as load index 99 — rated for 1,709 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Nexen N'Fera AU7?
The Nexen N'Fera AU7 in 245/45R17 is a high performance tire.
Keep shopping
Shop all 245/45R17 tires, see every Nexen N'Fera AU7 size, or view all tires at ThreePiece.us.
- BRAND:
- Nexen
- Model:
- NEX N'Fera AU7
- Size:
- 245/45R17
- Aspect Ratio:
- 45
- Load Index:
- 99
- Load Range:
- XL
- Section Width:
- 245
- Service Description:
- 99W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 17
- Tire Type:
- High Performance
- Traction:
- AA
- Tread Wear:
- 500
- Tread Depth:
- 9
- UQTG:
- 500AAA
- Warranty:
- 50K
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