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Toyo
Toyo Proxes Sport 265/45R21 104Y - 133840
Toyo Proxes Sport 265/45R21 104Y - 133840
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The Toyo Proxes Sport in 265/45R21 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 265/45R21 means
In the size 265/45R21, 265 is the section width in millimeters (10.43 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 119.2 mm (4.69 in) — R denotes radial construction, and 21 is the wheel diameter in inches. That works out to an overall diameter of about 30.39 inches, turning roughly 664 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 104 — a maximum load of 1,984 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 265/45R21 |
| Tire Type | Summer |
| Service Description | 104Y |
| Load Index | 104 |
| Speed Rating | Y |
| Load Range | Standard Load |
| Section Width (mm) | 265 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 30.4 |
| Tread Depth (/32") | 9.4 |
| Treadwear | 240 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 240AAA |
| Warranty | 25K |
Frequently asked questions
What does 104Y mean on the Toyo Proxes Sport?
104Y breaks down as load index 104 — rated for 1,984 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Toyo Proxes Sport?
The Toyo Proxes Sport in 265/45R21 is a summer tire.
What are the treadwear and warranty ratings on the Toyo Proxes Sport?
This tire carries a treadwear grade of 240, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 25K.
Keep shopping
Shop all 265/45R21 tires, browse Toyo tires, see every Toyo Proxes Sport size, or view all tires at ThreePiece.us.
- Brand:
- Toyo
- Model:
- Proxes Sport
- Size:
- 265/45R21
- Aspect Ratio:
- 45
- Load Index:
- 104
- Load Range:
- Standard Load
- Section Width:
- 265
- Service Description:
- 104Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 30.4
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 240
- Tread Depth:
- 9.4
- UQTG:
- 240AAA
- Warranty:
- 25K
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