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Sumitomo
Sumitomo HTR Z5 285/30R20
Sumitomo HTR Z5 285/30R20
This wheel on real customer builds
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Sumitomo
Lease-to-own for as low as
/week
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Width:
20.00
(in)
Height:
11.22
(in)
Depth:
20.00
(in)
SKU:
Sumitomohtr18
$238.99
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 285/30R20 tire? The Sumitomo HTR Z5 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 285/30R20 means
In the size 285/30R20, 285 is the section width in millimeters (11.22 in), 30 is the aspect ratio — the sidewall stands 30% as tall as the tire is wide, or 85.5 mm (3.37 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 26.73 inches, turning roughly 754 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.
Specifications
| Size | 285/30R20 |
| Service Description | 99 |
| Load Index | 99 |
| Section Width (mm) | 285 |
| Aspect Ratio | 30 |
| Temperature Grade | ATIRE RIM DIAMETER=20TIRE TYPE=TRACTION=AATREAD WEAR=320TREAD DEPTH=UQTG=320 AA AWARRANTY= |
Frequently asked questions
Will 285/30R20 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 285/30R20, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.
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.
Keep shopping
Browse Sumitomo tires, see every Sumitomo HTR Z5 size, or view all tires at ThreePiece.us.
- BRAND:
- Sumitomo
- MODEL:
- HTR Z5
- SIZE:
- 285/30R20
- ASPECT RATIO:
- 30
- LOAD INDEX:
- 99
- SECTION WIDTH:
- 285
- SERVICE DESCRIPTION:
- 99
- TEMPERATURE:
- ATIRE RIM DIAMETER=20TIRE TYPE=TRACTION=AATREAD WEAR=320TREAD DEPTH=UQTG=320 AA AWARRANTY=
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