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Michelin
Michelin 4X4 Diamaris 275/40R20XL 106Y - 37751
Michelin 4X4 Diamaris 275/40R20XL 106Y - 37751
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Shop the Michelin 4X4 Diamaris 275/40R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 275/40R20 means
In the size 275/40R20, 275 is the section width in millimeters (10.83 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 110.0 mm (4.33 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 28.66 inches, turning roughly 704 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 106 — a maximum load of 2,094 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 275/40R20XL |
| Tire Type | Summer |
| Service Description | 106Y |
| Load Index | 106 |
| Speed Rating | Y |
| Load Range | Extra Load |
| Section Width (mm) | 275 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 28.8 |
| Tread Depth (/32") | 10 |
| Treadwear | 220 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 220AAA |
| Warranty | 25K |
Frequently asked questions
What are the treadwear and warranty ratings on the Michelin 4X4 Diamaris?
This tire carries a treadwear grade of 220, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 25K.
What does 106Y mean on the Michelin 4X4 Diamaris?
106Y breaks down as load index 106 — rated for 2,094 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Michelin 4X4 Diamaris?
The Michelin 4X4 Diamaris in 275/40R20 is a summer tire.
Keep shopping
Shop all 275/40R20 tires, browse Michelin tires, see every Michelin 4X4 Diamaris size, or view all tires at ThreePiece.us.
- BRAND:
- Michelin
- Model:
- 4X4 Diamaris
- Size:
- 275/40R20XL
- Aspect Ratio:
- 40
- Load Index:
- 106
- Load Range:
- Extra Load
- Section Width:
- 275
- Service Description:
- 106Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 28.8
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 220
- Tread Depth:
- 10
- UQTG:
- 220AAA
- Warranty:
- 25K
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