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Summit
Summit ULTRAMAX HP AS 245/45R20
Summit ULTRAMAX HP AS 245/45R20
This wheel on real customer builds
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Summit
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/week
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Width:
20.00
(in)
Height:
9.65
(in)
Depth:
20.00
(in)
SKU:
Summit10298
$141.00
Lease-to-own for as low as
/week
Get Started
Guaranteed to Fit — confirm your size with the fitment checker on this page
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Looking for a 245/45R20 tire? The Summit ULTRAMAX HP AS is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 245/45R20 means
In the size 245/45R20, 245 is the section width in millimeters (9.65 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 110.2 mm (4.34 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 28.68 inches, turning roughly 703 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 103 — a maximum load of 1,929 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 245/45R20 |
| Service Description | 103W |
| Load Index | 103 |
| Speed Rating | W |
| Section Width (mm) | 245 |
| Aspect Ratio | 45 |
| Temperature Grade | ATIRE RIM DIAMETER=20TIRE TYPE=TRACTION=AATREAD WEAR=480TREAD DEPTH=UQTG=480 AA AWARRANTY= |
Frequently asked questions
Will 245/45R20 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 245/45R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 245/45R20 tire in stock to compare options.
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 103W mean on the Summit ULTRAMAX HP AS?
103W breaks down as load index 103 — rated for 1,929 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Keep shopping
Shop all 245/45R20 tires, browse Summit tires, see every Summit ULTRAMAX HP AS size, or view all tires at ThreePiece.us.
- BRAND:
- Summit
- MODEL:
- ULTRAMAX HP AS
- SIZE:
- 245/45R20
- ASPECT RATIO:
- 45
- LOAD INDEX:
- 103
- SECTION WIDTH:
- 245
- SERVICE DESCRIPTION:
- 103W
- SPEED INDEX:
- W
- TEMPERATURE:
- ATIRE RIM DIAMETER=20TIRE TYPE=TRACTION=AATREAD WEAR=480TREAD DEPTH=UQTG=480 AA AWARRANTY=
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