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Cooper
Cooper Zeon RS3-S 305/35R20XL 107Y - 90000020059
Cooper Zeon RS3-S 305/35R20XL 107Y - 90000020059
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The Cooper Zeon RS3-S in 305/35R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 305/35R20 means
In the size 305/35R20, 305 is the section width in millimeters (12.01 in), 35 is the aspect ratio — the sidewall stands 35% as tall as the tire is wide, or 106.8 mm (4.20 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 28.41 inches, turning roughly 710 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 107 — a maximum load of 2,150 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 305/35R20XL |
| Tire Type | All Season |
| Service Description | 107Y |
| Load Index | 107 |
| Speed Rating | Y |
| Load Range | XL |
| Section Width (mm) | 305 |
| Aspect Ratio | 35 |
| Overall Diameter (in) | 28.43 |
| Tread Depth (/32") | 10 |
| Treadwear | 300 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 300AAA |
| Warranty | 20K |
Frequently asked questions
What does 107Y mean on the Cooper Zeon RS3-S?
107Y breaks down as load index 107 — rated for 2,150 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Cooper Zeon RS3-S?
The Cooper Zeon RS3-S in 305/35R20 is a all season tire.
What are the treadwear and warranty ratings on the Cooper Zeon RS3-S?
This tire carries a treadwear grade of 300, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 20K.
Keep shopping
Browse Cooper tires, see every Cooper Zeon RS3-S size, or view all tires at ThreePiece.us.
- BRAND:
- Cooper
- Model:
- Zeon RS3-S
- Size:
- 305/35R20XL
- Aspect Ratio:
- 35
- Load Index:
- 107
- Load Range:
- XL
- Section Width:
- 305
- Service Description:
- 107Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 28.43
- Tire Type:
- All Season
- Traction:
- AA
- Tread Wear:
- 300
- Tread Depth:
- 10
- UQTG:
- 300AAA
- Warranty:
- 20K
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