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Gt Radial
Gt Radial CHAMPIRO HPY 235/55R18
Gt Radial CHAMPIRO HPY 235/55R18
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The Gt Radial CHAMPIRO HPY in 235/55R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 235/55R18 means
In the size 235/55R18, 235 is the section width in millimeters (9.25 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 129.2 mm (5.09 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 28.18 inches, turning roughly 716 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 104 — a maximum load of 1,984 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 235/55R18 |
| Service Description | 104W |
| Load Index | 104 |
| Speed Rating | W |
| Section Width (mm) | 235 |
| Aspect Ratio | 55 |
| Temperature Grade | ATIRE RIM DIAMETER=18TIRE TYPE= TRACTION=AATREAD WEAR=300TREAD DEPTH=UQTG=300 AA AWARRANTY= |
Frequently asked questions
What does 104W mean on the Gt Radial CHAMPIRO HPY?
104W breaks down as load index 104 — rated for 1,984 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Will 235/55R18 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 235/55R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 235/55R18 tire in stock to compare options.
How fast does this tire ship?
Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.
Keep shopping
Shop all 235/55R18 tires, 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:
- 235/55R18
- ASPECT RATIO:
- 55
- LOAD INDEX:
- 104
- SECTION WIDTH:
- 235
- SERVICE DESCRIPTION:
- 104W
- SPEED INDEX:
- W
- TEMPERATURE:
- ATIRE RIM DIAMETER=18TIRE TYPE= TRACTION=AATREAD WEAR=300TREAD DEPTH=UQTG=300 AA AWARRANTY=
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