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DUNLOP
Dunlop Sport Maxx RT2 245/45R18XL 100Y - 57001060
Dunlop Sport Maxx RT2 245/45R18XL 100Y - 57001060
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Shop the Dunlop Sport Maxx RT2 245/45R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 245/45R18 means
In the size 245/45R18, 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 18 is the wheel diameter in inches. That works out to an overall diameter of about 26.68 inches, turning roughly 756 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 100 — a maximum load of 1,764 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 245/45R18XL |
| Tire Type | Summer |
| Service Description | 100Y |
| Load Index | 100 |
| Speed Rating | Y |
| Load Range | XL |
| Section Width (mm) | 245 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 26.7 |
| Tread Depth (/32") | 9 |
| Treadwear | 240 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 240AAA |
Frequently asked questions
What are the treadwear and warranty ratings on the Dunlop Sport Maxx RT2?
This tire carries a treadwear grade of 240, traction grade AA, temperature grade A under UTQG.
What does 100Y mean on the Dunlop Sport Maxx RT2?
100Y breaks down as load index 100 — rated for 1,764 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Dunlop Sport Maxx RT2?
The Dunlop Sport Maxx RT2 in 245/45R18 is a summer tire.
Keep shopping
Shop all 245/45R18 tires, browse Dunlop tires, see every Dunlop Sport Maxx RT2 size, or view all tires at ThreePiece.us.
- BRAND:
- Dunlop
- Model:
- Sport Maxx RT2
- Size:
- 245/45R18XL
- Aspect Ratio:
- 45
- Load Index:
- 100
- Load Range:
- XL
- Section Width:
- 245
- Service Description:
- 100Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 26.7
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 240
- Tread Depth:
- 9
- UQTG:
- 240AAA
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