Write a Review
Accelera
Accelera Iota ST68 265/45R20
Accelera Iota ST68 265/45R20
📧 Get Fitment Help
Verify parts fit & get product recommendations
Lease-to-own for as low as
/week
Get Started
Guaranteed to Fit — confirm your size with the fitment checker on this page
Price Match Guarantee Learn More
Free Mount & Balance
Free Shipping
OUT OF STOCK 
📧 Get Fitment Help
Verify parts fit & get product recommendations
Shop the Accelera Iota ST68 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 104 — a maximum load of 1,984 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 265/45R20 |
| Service Description | 104Y |
| Load Index | 104 |
| Speed Rating | Y |
| Load Range | SL |
| Section Width (mm) | 265 |
| Aspect Ratio | 45 |
| Temperature Grade | ATIRE RIM DIAMETER=20TIRE TYPE=TouringTRACTION=ATREAD WEAR=400TREAD DEPTH=UQTG=400 A AWARRANTY=40000 |
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 104Y mean on the Accelera Iota ST68?
104Y breaks down as load index 104 — rated for 1,984 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 Accelera tires, see every Accelera Iota ST68 size, or view all tires at ThreePiece.us.
- BRAND:
- Accelera
- MODEL:
- Iota ST68
- SIZE:
- 265/45R20
- ASPECT RATIO:
- 45
- LOAD INDEX:
- 104
- LOAD RANGE:
- SL
- SECTION WIDTH:
- 265
- SERVICE DESCRIPTION:
- 104Y
- SPEED INDEX:
- Y
- TEMPERATURE:
- ATIRE RIM DIAMETER=20TIRE TYPE=TouringTRACTION=ATREAD WEAR=400TREAD DEPTH=UQTG=400 A AWARRANTY=40000
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review