Write a Review
Nexen
Nexen NEX N'Fera SU1 245/45ZR19
Nexen NEX N'Fera SU1 245/45ZR19
📧 Get Fitment Help
Verify parts fit & get product recommendations
Lease-to-own for as low as
/week
Get Started
Guaranteed to Fit — confirm your size with the fitment checker on this page
Price Match Guarantee Learn More
Free Mount & Balance
Free Shipping
OUT OF STOCK 
📧 Get Fitment Help
Verify parts fit & get product recommendations
Looking for a 245/45R19 high performance tire? The Nexen N'Fera SU1 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 245/45R19 means
In the size 245/45R19, 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 19 is the wheel diameter in inches. That works out to an overall diameter of about 27.68 inches, turning roughly 729 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 19 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 102 — a maximum load of 1,874 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 245/45ZR19 |
| Tire Type | High Performance |
| Service Description | 102Y |
| Load Index | 102 |
| Speed Rating | Y |
| Load Range | SL |
| Section Width (mm) | 245 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 19 |
| Tread Depth (/32") | 9.5 |
| Treadwear | 300 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 300AAA |
| Warranty | 25K |
Frequently asked questions
What kind of tire is the Nexen N'Fera SU1?
The Nexen N'Fera SU1 in 245/45R19 is a high performance tire.
What are the treadwear and warranty ratings on the Nexen N'Fera SU1?
This tire carries a treadwear grade of 300, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 25K.
What does 102Y mean on the Nexen N'Fera SU1?
102Y breaks down as load index 102 — rated for 1,874 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
Keep shopping
Shop all 245/45R19 tires, see every Nexen N'Fera SU1 size, or view all tires at ThreePiece.us.
- BRAND:
- Nexen
- Model:
- NEX N'Fera SU1
- Size:
- 245/45ZR19
- Aspect Ratio:
- 45
- Load Index:
- 102
- Load Range:
- SL
- Section Width:
- 245
- Service Description:
- 102Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 19
- Tire Type:
- High Performance
- Traction:
- AA
- Tread Wear:
- 300
- Tread Depth:
- 9.5
- UQTG:
- 300AAA
- Warranty:
- 25K
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review