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Accelera
Accelera Iota ST68 275/45R19
Accelera Iota ST68 275/45R19
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The Accelera Iota ST68 in 275/45R19 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 275/45R19 means
In the size 275/45R19, 275 is the section width in millimeters (10.83 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 123.8 mm (4.87 in) — R denotes radial construction, and 19 is the wheel diameter in inches. That works out to an overall diameter of about 28.74 inches, turning roughly 702 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 W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 275/45R19 |
| Service Description | 108W |
| Load Index | 108 |
| Speed Rating | W |
| Load Range | XL |
| Section Width (mm) | 275 |
| Aspect Ratio | 45 |
| Temperature Grade | ATIRE RIM DIAMETER=19TIRE TYPE=TouringTRACTION=ATREAD WEAR=400TREAD DEPTH=UQTG=400 A AWARRANTY=40000 |
Frequently asked questions
What does 108W mean on the Accelera Iota ST68?
108W breaks down as load index 108 — rated for 2,205 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Will 275/45R19 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 275/45R19, 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.
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Browse Accelera tires, see every Accelera Iota ST68 size, or view all tires at ThreePiece.us.
- BRAND:
- Accelera
- MODEL:
- Iota ST68
- SIZE:
- 275/45R19
- ASPECT RATIO:
- 45
- LOAD INDEX:
- 108
- LOAD RANGE:
- XL
- SECTION WIDTH:
- 275
- SERVICE DESCRIPTION:
- 108W
- SPEED INDEX:
- W
- TEMPERATURE:
- ATIRE RIM DIAMETER=19TIRE TYPE=TouringTRACTION=ATREAD WEAR=400TREAD DEPTH=UQTG=400 A AWARRANTY=40000
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