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Toyo
Toyo Proxes R 345/35ZR18 109W - 255480
Toyo Proxes R 345/35ZR18 109W - 255480
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Shop the Toyo Proxes R 345/35R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 345/35R18 means
In the size 345/35R18, 345 is the section width in millimeters (13.58 in), 35 is the aspect ratio — the sidewall stands 35% as tall as the tire is wide, or 120.7 mm (4.75 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 27.51 inches, turning roughly 733 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 345/35ZR18 |
| Tire Type | Summer |
| Service Description | 109W |
| Load Index | 109 |
| Speed Rating | W |
| Load Range | Standard Load |
| Section Width (mm) | 345 |
| Aspect Ratio | 35 |
| Overall Diameter (in) | 27.5 |
| Tread Depth (/32") | 3.7 |
| Treadwear | 40 |
| Traction Grade | C |
| Temperature Grade | A |
| UTQG | 40CA |
Frequently asked questions
What are the treadwear and warranty ratings on the Toyo Proxes R?
This tire carries a treadwear grade of 40, traction grade C, temperature grade A under UTQG.
What does 109W mean on the Toyo Proxes R?
109W breaks down as load index 109 — rated for 2,271 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Toyo Proxes R?
The Toyo Proxes R in 345/35R18 is a summer tire.
Keep shopping
Browse Toyo tires, see every Toyo Proxes R size, or view all tires at ThreePiece.us.
- BRAND:
- Toyo
- Model:
- Proxes R
- Size:
- 345/35ZR18
- Aspect Ratio:
- 35
- Load Index:
- 109
- Load Range:
- Standard Load
- Section Width:
- 345
- Service Description:
- 109W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 27.5
- Tire Type:
- Summer
- Traction:
- C
- Tread Wear:
- 40
- Tread Depth:
- 3.7
- UQTG:
- 40CA
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