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Gt Radial
GT Radial Champiro HPY 255/40ZR17XL 98Y - B026
GT Radial Champiro HPY 255/40ZR17XL 98Y - B026
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Shop the GT Radial Champiro HPY 255/40R17 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 255/40R17 means
In the size 255/40R17, 255 is the section width in millimeters (10.04 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 102.0 mm (4.02 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 25.03 inches, turning roughly 806 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 98 — a maximum load of 1,653 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 255/40ZR17XL |
| Tire Type | Summer |
| Service Description | 98Y |
| Load Index | 98 |
| Speed Rating | Y |
| Load Range | XL |
| Section Width (mm) | 255 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 25 |
| Tread Depth (/32") | 10 |
| Treadwear | 300 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 300AAA |
Frequently asked questions
What are the treadwear and warranty ratings on the GT Radial Champiro HPY?
This tire carries a treadwear grade of 300, traction grade AA, temperature grade A under UTQG.
What does 98Y mean on the GT Radial Champiro HPY?
98Y breaks down as load index 98 — rated for 1,653 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the GT Radial Champiro HPY?
The GT Radial Champiro HPY in 255/40R17 is a summer tire.
Keep shopping
Browse GT Radial tires, see every GT Radial Champiro HPY size, or view all tires at ThreePiece.us.
- BRAND:
- GT Radial
- Model:
- Champiro HPY
- Size:
- 255/40ZR17XL
- Aspect Ratio:
- 40
- Load Index:
- 98
- Load Range:
- XL
- Section Width:
- 255
- Service Description:
- 98Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 25
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 300
- Tread Depth:
- 10
- UQTG:
- 300AAA
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