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Toyo
Toyo TOY Proxes R1R 255/35ZR18
Toyo TOY Proxes R1R 255/35ZR18
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The Toyo Proxes R1R in 255/35R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 255/35R18 means
In the size 255/35R18, 255 is the section width in millimeters (10.04 in), 35 is the aspect ratio — the sidewall stands 35% as tall as the tire is wide, or 89.2 mm (3.51 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.03 inches, turning roughly 806 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 90 — a maximum load of 1,323 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 255/35ZR18 |
| Tire Type | High-Performance |
| Service Description | 90W |
| Load Index | 90 |
| Speed Rating | W |
| Load Range | SL |
| Section Width (mm) | 255 |
| Aspect Ratio | 35 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 8.2 |
| Treadwear | 200 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 200AAA |
Frequently asked questions
What does 90W mean on the Toyo Proxes R1R?
90W breaks down as load index 90 — rated for 1,323 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
What kind of tire is the Toyo Proxes R1R?
The Toyo Proxes R1R in 255/35R18 is a high-performance tire.
What are the treadwear and warranty ratings on the Toyo Proxes R1R?
This tire carries a treadwear grade of 200, traction grade AA, temperature grade A under UTQG.
Keep shopping
Shop all 255/35R18 tires, see every Toyo Proxes R1R size, or view all tires at ThreePiece.us.
- Brand:
- Toyo
- Model:
- TOY Proxes R1R
- Size:
- 255/35ZR18
- Aspect Ratio:
- 35
- Load Index:
- 90
- Load Range:
- SL
- Section Width:
- 255
- Service Description:
- 90W
- Speed Index:
- W
- Temperature:
- A
- Tire Rim Diameter:
- 18
- Tire Type:
- High-Performance
- Traction:
- AA
- Tread Wear:
- 200
- Tread Depth:
- 8.2
- UQTG:
- 200AAA
- Warranty:
- N/A
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