Write a Review
DUNLOP
Dunlop Sport Maxx RT 245/40R18XL 97W - 57000210
Dunlop Sport Maxx RT 245/40R18XL 97W - 57000210
📧 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
IN STOCK (250 wheels)
📧 Get Fitment Help
Verify parts fit & get product recommendations
Looking for a 245/40R18 summer tire? The Dunlop Sport Maxx RT is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 245/40R18 means
In the size 245/40R18, 245 is the section width in millimeters (9.65 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 98.0 mm (3.86 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.72 inches, turning roughly 784 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 97 — a maximum load of 1,609 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 245/40R18XL |
| Tire Type | Summer |
| Service Description | 97W |
| Load Index | 97 |
| Speed Rating | W |
| Load Range | XL |
| Section Width (mm) | 245 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 25.59 |
| Tread Depth (/32") | 9 |
| Treadwear | 240 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 240AAA |
Frequently asked questions
What kind of tire is the Dunlop Sport Maxx RT?
The Dunlop Sport Maxx RT in 245/40R18 is a summer tire.
What are the treadwear and warranty ratings on the Dunlop Sport Maxx RT?
This tire carries a treadwear grade of 240, traction grade AA, temperature grade A under UTQG.
What does 97W mean on the Dunlop Sport Maxx RT?
97W breaks down as load index 97 — rated for 1,609 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Keep shopping
Shop all 245/40R18 tires, browse Dunlop tires, see every Dunlop Sport Maxx RT size, or view all tires at ThreePiece.us.
- BRAND:
- Dunlop
- Model:
- Sport Maxx RT
- Size:
- 245/40R18XL
- Aspect Ratio:
- 40
- Load Index:
- 97
- Load Range:
- XL
- Section Width:
- 245
- Service Description:
- 97W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 25.59
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 240
- Tread Depth:
- 9
- UQTG:
- 240AAA
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