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Pirelli
Pirelli PIR Scorpion 235/55R18
Pirelli PIR Scorpion 235/55R18
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Looking for a 235/55R18 all terrain tire? The Pirelli Scorpion is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
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 manufacturer lists the overall diameter of this specific tire as 18 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 100 — a maximum load of 1,764 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 235/55R18 |
| Tire Type | All Terrain |
| Service Description | 100H |
| Load Index | 100 |
| Speed Rating | H |
| Load Range | SL |
| Section Width (mm) | 235 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 9 |
| Treadwear | 400 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 400AAA |
Frequently asked questions
What kind of tire is the Pirelli Scorpion?
The Pirelli Scorpion in 235/55R18 is a all terrain tire.
What are the treadwear and warranty ratings on the Pirelli Scorpion?
This tire carries a treadwear grade of 400, traction grade AA, temperature grade A under UTQG.
What does 100H mean on the Pirelli Scorpion?
100H breaks down as load index 100 — rated for 1,764 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
Keep shopping
Shop all 235/55R18 tires, see every Pirelli Scorpion size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Pirelli
- Model:
- PIR Scorpion
- Size:
- 235/55R18
- Aspect Ratio:
- 55
- Load Index:
- 100
- Load Range:
- SL
- Section Width:
- 235
- Service Description:
- 100H
- Speed Index:
- H
- Temperature:
- A
- Tire Rim Diameter:
- 18
- Tire Type:
- All Terrain
- Traction:
- AA
- Tread Wear:
- 400
- Tread Depth:
- 9
- UQTG:
- 400AAA
- Warranty:
- N/A
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