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Toyo
Toyo TOY Open Country WLT1 LT275/70R18/10
Toyo TOY Open Country WLT1 LT275/70R18/10
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Looking for a 275/70R18 snow performance tire? The Toyo Open Country WLT1 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 275/70R18 means
In the size 275/70R18, 275 is the section width in millimeters (10.83 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 192.5 mm (7.58 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 33.16 inches, turning roughly 608 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 125 — a maximum load of 3,638 lbs per tire, or 122 (3,307 lbs) per tire when mounted as duals. The speed symbol Q corresponds to a maximum sustained speed of 99 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT275/70R18/10 |
| Tire Type | Snow performance |
| Service Description | 125/122Q |
| Load Index | 125/122 |
| Speed Rating | Q |
| Load Range | E (10 Ply) |
| Section Width (mm) | 275 |
| Aspect Ratio | 70 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 16.5 |
Frequently asked questions
What kind of tire is the Toyo Open Country WLT1?
The Toyo Open Country WLT1 in 275/70R18 is a snow performance tire.
Will 275/70R18 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 275/70R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/70R18 tire in stock to compare options.
What does 125/122Q mean on the Toyo Open Country WLT1?
125/122Q breaks down as load index 125 — rated for 3,638 lbs per tire (122, or 3,307 lbs, in dual fitment) — with a Q speed rating, good for a maximum sustained 99 mph.
Keep shopping
Shop all 275/70R18 tires, see every Toyo Open Country WLT1 size, explore winter snow tires, or view all tires at ThreePiece.us.
- BRAND:
- Toyo
- Model:
- TOY Open Country WLT1
- Size:
- LT275/70R18/10
- Aspect Ratio:
- 70
- Load Index:
- 125/122
- Load Range:
- E (10 Ply)
- Section Width:
- 275
- Service Description:
- 125/122Q
- Speed Index:
- Q
- Temperature:
- N/A
- Tire Rim Diameter:
- 18
- Tire Type:
- Snow performance
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 16.5
- UQTG:
- N/A
- Warranty:
- N/A
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