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General Tire
General Tire GEN Altimax RT45 235/55R20
General Tire GEN Altimax RT45 235/55R20
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Shop the General Tire Altimax RT45 235/55R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 235/55R20 means
In the size 235/55R20, 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 20 is the wheel diameter in inches. That works out to an overall diameter of about 30.18 inches, turning roughly 668 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 102 — a maximum load of 1,874 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 235/55R20 |
| Tire Type | Touring |
| Service Description | 102H |
| Load Index | 102 |
| Speed Rating | H |
| Load Range | SL |
| Section Width (mm) | 235 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 30.18 |
| Tread Depth (/32") | 11 |
| Treadwear | 700 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 700AA |
| Warranty | 75K |
Frequently asked questions
What are the treadwear and warranty ratings on the General Tire Altimax RT45?
This tire carries a treadwear grade of 700, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 75K.
What does 102H mean on the General Tire Altimax RT45?
102H breaks down as load index 102 — rated for 1,874 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
What kind of tire is the General Tire Altimax RT45?
The General Tire Altimax RT45 in 235/55R20 is a touring tire.
Keep shopping
Shop all 235/55R20 tires, see every General Tire Altimax RT45 size, or view all tires at ThreePiece.us.
- BRAND:
- General Tire
- Model:
- GEN Altimax RT45
- Size:
- 235/55R20
- Aspect Ratio:
- 55
- Load Index:
- 102
- Load Range:
- SL
- Section Width:
- 235
- Service Description:
- 102H
- Speed Index:
- H
- Temperature:
- A
- Tire Rim Diameter:
- 30.18
- Tire Type:
- Touring
- Traction:
- A
- Tread Wear:
- 700
- Tread Depth:
- 11
- UQTG:
- 700AA
- Warranty:
- 75K
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