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Nitto
Nitto Terra Grappler G3 245/60R18XL 109T - 224530
Nitto Terra Grappler G3 245/60R18XL 109T - 224530
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Looking for a 245/60R18 all season tire? The Nitto Terra Grappler G3 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 245/60R18 means
In the size 245/60R18, 245 is the section width in millimeters (9.65 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 147.0 mm (5.79 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 29.57 inches, turning roughly 682 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 245/60R18XL |
| Tire Type | All Season |
| Service Description | 109T |
| Load Index | 109 |
| Speed Rating | T |
| Load Range | Extra Load |
| Section Width (mm) | 245 |
| Aspect Ratio | 60 |
| Overall Diameter (in) | 29.57 |
| Tread Depth (/32") | 13.1 |
| Treadwear | 600 |
| Traction Grade | A |
| Temperature Grade | B |
| UTQG | 600AB |
| Warranty | 70K |
Frequently asked questions
What kind of tire is the Nitto Terra Grappler G3?
The Nitto Terra Grappler G3 in 245/60R18 is a all season tire.
What are the treadwear and warranty ratings on the Nitto Terra Grappler G3?
This tire carries a treadwear grade of 600, traction grade A, temperature grade B under UTQG. The manufacturer's warranty is 70K.
What does 109T mean on the Nitto Terra Grappler G3?
109T breaks down as load index 109 — rated for 2,271 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.
Keep shopping
Shop all 245/60R18 tires, browse Nitto tires, see every Nitto Terra Grappler G3 size, or view all tires at ThreePiece.us.
- BRAND:
- Nitto
- Model:
- Terra Grappler G3
- Size:
- 245/60R18XL
- Aspect Ratio:
- 60
- Load Index:
- 109
- Load Range:
- Extra Load
- Section Width:
- 245
- Service Description:
- 109T
- Speed Index:
- T
- Temperature:
- B
- Tire Rim Diameter:
- 29.57
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 600
- Tread Depth:
- 13.1
- UQTG:
- 600AB
- Warranty:
- 70K
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