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Gt Radial
GT Radial MaxClimate 245/40R18XL 97V - 100UA4559
GT Radial MaxClimate 245/40R18XL 97V - 100UA4559
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The GT Radial MaxClimate in 245/40R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
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 manufacturer lists the overall diameter of this specific tire as 30.2 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 97 — a maximum load of 1,609 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 245/40R18XL |
| Tire Type | All Season |
| Service Description | 97V |
| Load Index | 97 |
| Speed Rating | V |
| Load Range | Extra Load |
| Section Width (mm) | 245 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 30.2 |
| Tread Depth (/32") | 11 |
| Treadwear | 600 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 600AA |
| Warranty | 60K |
Frequently asked questions
What does 97V mean on the GT Radial MaxClimate?
97V breaks down as load index 97 — rated for 1,609 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.
What kind of tire is the GT Radial MaxClimate?
The GT Radial MaxClimate in 245/40R18 is a all season tire.
What are the treadwear and warranty ratings on the GT Radial MaxClimate?
This tire carries a treadwear grade of 600, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 60K.
Keep shopping
Shop all 245/40R18 tires, browse GT Radial tires, see every GT Radial MaxClimate size, or view all tires at ThreePiece.us.
- BRAND:
- GT Radial
- Model:
- MaxClimate
- Size:
- 245/40R18XL
- Aspect Ratio:
- 40
- Load Index:
- 97
- Load Range:
- Extra Load
- Section Width:
- 245
- Service Description:
- 97V
- Speed Index:
- V
- Temperature:
- A
- Tire Rim Diameter:
- 30.2
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 600
- Tread Depth:
- 11
- UQTG:
- 600AA
- Warranty:
- 60K
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