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Gt Radial
GT Radial Champiro HPY 205/40ZR18XL 86Y - B352
GT Radial Champiro HPY 205/40ZR18XL 86Y - B352
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The GT Radial Champiro HPY in 205/40R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 205/40R18 means
In the size 205/40R18, 205 is the section width in millimeters (8.07 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 82.0 mm (3.23 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 24.46 inches, turning roughly 825 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 86 — a maximum load of 1,168 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 205/40ZR18XL |
| Tire Type | Summer |
| Service Description | 86Y |
| Load Index | 86 |
| Speed Rating | Y |
| Load Range | XL |
| Section Width (mm) | 205 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 24.4 |
| Tread Depth (/32") | 10 |
| Treadwear | 300 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 300AAA |
Frequently asked questions
What does 86Y mean on the GT Radial Champiro HPY?
86Y breaks down as load index 86 — rated for 1,168 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 205/40R18 is a summer tire.
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.
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:
- 205/40ZR18XL
- Aspect Ratio:
- 40
- Load Index:
- 86
- Load Range:
- XL
- Section Width:
- 205
- Service Description:
- 86Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 24.4
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 300
- Tread Depth:
- 10
- UQTG:
- 300AAA
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