Write a Review
DUNLOP
Dunlop Grandtrek PT5A 265/55R20XL 113V - 57000300
Dunlop Grandtrek PT5A 265/55R20XL 113V - 57000300
📧 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
Shop the Dunlop Grandtrek PT5A 265/55R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 265/55R20 means
In the size 265/55R20, 265 is the section width in millimeters (10.43 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 145.8 mm (5.74 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 31.48 inches, turning roughly 641 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 31.77 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 113 — a maximum load of 2,535 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.
Specifications
| Size | 265/55R20XL |
| Tire Type | All Season |
| Service Description | 113V |
| Load Index | 113 |
| Speed Rating | V |
| Load Range | XL |
| Section Width (mm) | 265 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 31.77 |
| Tread Depth (/32") | 9 |
| Treadwear | 360 |
| Traction Grade | B |
| Temperature Grade | A |
| UTQG | 360BA |
Frequently asked questions
What are the treadwear and warranty ratings on the Dunlop Grandtrek PT5A?
This tire carries a treadwear grade of 360, traction grade B, temperature grade A under UTQG.
What does 113V mean on the Dunlop Grandtrek PT5A?
113V breaks down as load index 113 — rated for 2,535 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.
What kind of tire is the Dunlop Grandtrek PT5A?
The Dunlop Grandtrek PT5A in 265/55R20 is a all season tire.
Keep shopping
Browse Dunlop tires, see every Dunlop Grandtrek PT5A size, or view all tires at ThreePiece.us.
- BRAND:
- Dunlop
- Model:
- Grandtrek PT5A
- Size:
- 265/55R20XL
- Aspect Ratio:
- 55
- Load Index:
- 113
- Load Range:
- XL
- Section Width:
- 265
- Service Description:
- 113V
- Speed Index:
- V
- Temperature:
- A
- Tire Rim Diameter:
- 31.77
- Tire Type:
- All Season
- Traction:
- B
- Tread Wear:
- 360
- Tread Depth:
- 9
- UQTG:
- 360BA
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