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Sumitomo
Sumitomo HTR Z5 255/30R19
Sumitomo HTR Z5 255/30R19
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Shop the Sumitomo HTR Z5 255/30R19 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 255/30R19 means
In the size 255/30R19, 255 is the section width in millimeters (10.04 in), 30 is the aspect ratio — the sidewall stands 30% as tall as the tire is wide, or 76.5 mm (3.01 in) — R denotes radial construction, and 19 is the wheel diameter in inches. That works out to an overall diameter of about 25.02 inches, turning roughly 806 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 91 — a maximum load of 1,356 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 255/30R19 |
| Service Description | 91Y |
| Load Index | 91 |
| Speed Rating | Y |
| Section Width (mm) | 255 |
| Aspect Ratio | 30 |
| Temperature Grade | TIRE RIM DIAMETER=19TIRE TYPE=TRACTION=TREAD WEAR=TREAD DEPTH=UQTG=WARRANTY= |
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 91Y mean on the Sumitomo HTR Z5?
91Y breaks down as load index 91 — rated for 1,356 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
Will 255/30R19 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 255/30R19, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.
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Browse Sumitomo tires, see every Sumitomo HTR Z5 size, or view all tires at ThreePiece.us.
- BRAND:
- Sumitomo
- MODEL:
- HTR Z5
- SIZE:
- 255/30R19
- ASPECT RATIO:
- 30
- LOAD INDEX:
- 91
- SECTION WIDTH:
- 255
- SERVICE DESCRIPTION:
- 91Y
- SPEED INDEX:
- Y
- TEMPERATURE:
- TIRE RIM DIAMETER=19TIRE TYPE=TRACTION=TREAD WEAR=TREAD DEPTH=UQTG=WARRANTY=
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