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Michelin
Michelin Premier LTX 255/50R20XL 109V - 51356
Michelin Premier LTX 255/50R20XL 109V - 51356
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The Michelin Premier LTX in 255/50R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 255/50R20 means
In the size 255/50R20, 255 is the section width in millimeters (10.04 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 127.5 mm (5.02 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 30.04 inches, turning roughly 671 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 109 — a maximum load of 2,271 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 | 255/50R20XL |
| Tire Type | All Season |
| Service Description | 109V |
| Load Index | 109 |
| Speed Rating | V |
| Load Range | Extra Load |
| Section Width (mm) | 255 |
| Aspect Ratio | 50 |
| Overall Diameter (in) | 30.2 |
| Tread Depth (/32") | 10 |
| Treadwear | 620 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 620AA |
| Warranty | 60K |
Frequently asked questions
What does 109V mean on the Michelin Premier LTX?
109V breaks down as load index 109 — rated for 2,271 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.
What kind of tire is the Michelin Premier LTX?
The Michelin Premier LTX in 255/50R20 is a all season tire.
What are the treadwear and warranty ratings on the Michelin Premier LTX?
This tire carries a treadwear grade of 620, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 60K.
Keep shopping
Shop all 255/50R20 tires, browse Michelin tires, see every Michelin Premier LTX size, or view all tires at ThreePiece.us.
- BRAND:
- Michelin
- Model:
- Premier LTX
- Size:
- 255/50R20XL
- Aspect Ratio:
- 50
- Load Index:
- 109
- Load Range:
- Extra Load
- Section Width:
- 255
- Service Description:
- 109V
- Speed Index:
- V
- Temperature:
- A
- Tire Rim Diameter:
- 30.2
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 620
- Tread Depth:
- 10
- UQTG:
- 620AA
- Warranty:
- 60K
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