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Armstrong
Armstrong Tru-Trac SU 265/45R20
Armstrong Tru-Trac SU 265/45R20
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Shop the Armstrong Tru-Trac SU 265/45R20 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 265/45R20 means
In the size 265/45R20, 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 20 is the wheel diameter in inches. That works out to an overall diameter of about 29.39 inches, turning roughly 686 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 108 — a maximum load of 2,205 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 265/45R20 |
| Service Description | 108Y |
| Load Index | 108 |
| Speed Rating | Y |
| Section Width (mm) | 265 |
| Aspect Ratio | 45 |
| Temperature Grade | ATIRE RIM DIAMETER=20TIRE TYPE= TRACTION=ATREAD WEAR=440TREAD DEPTH=UQTG=440 A AWARRANTY= |
Frequently asked questions
How fast does this tire ship?
Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.
What does 108Y mean on the Armstrong Tru-Trac SU?
108Y breaks down as load index 108 — rated for 2,205 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
Will 265/45R20 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 265/45R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 265/45R20 tire in stock to compare options.
Keep shopping
Shop all 265/45R20 tires, browse Armstrong tires, see every Armstrong Tru-Trac SU size, or view all tires at ThreePiece.us.
- BRAND:
- Armstrong
- MODEL:
- Tru-Trac SU
- SIZE:
- 265/45R20
- ASPECT RATIO:
- 45
- LOAD INDEX:
- 108
- SECTION WIDTH:
- 265
- SERVICE DESCRIPTION:
- 108Y
- SPEED INDEX:
- Y
- TEMPERATURE:
- ATIRE RIM DIAMETER=20TIRE TYPE= TRACTION=ATREAD WEAR=440TREAD DEPTH=UQTG=440 A AWARRANTY=
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