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Lancaster
Lancaster TR-66GR-66 235/45R17
Lancaster TR-66GR-66 235/45R17
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The Lancaster TR-66GR-66 in 235/45R17 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 235/45R17 means
In the size 235/45R17, 235 is the section width in millimeters (9.25 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 105.8 mm (4.16 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 25.33 inches, turning roughly 796 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 97 — a maximum load of 1,609 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 235/45R17 |
| Service Description | 97W |
| Load Index | 97 |
| Speed Rating | W |
| Section Width (mm) | 235 |
| Aspect Ratio | 45 |
| Temperature Grade | ATIRE RIM DIAMETER=17TIRE TYPE=TRACTION=ATREAD WEAR=380TREAD DEPTH=UQTG=380 A AWARRANTY= |
Frequently asked questions
What does 97W mean on the Lancaster TR-66GR-66?
97W breaks down as load index 97 — rated for 1,609 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Will 235/45R17 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 235/45R17, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 235/45R17 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.
Keep shopping
Shop all 235/45R17 tires, browse Lancaster tires, see every Lancaster TR-66GR-66 size, or view all tires at ThreePiece.us.
- BRAND:
- Lancaster
- MODEL:
- TR-66GR-66
- SIZE:
- 235/45R17
- ASPECT RATIO:
- 45
- LOAD INDEX:
- 97
- SECTION WIDTH:
- 235
- SERVICE DESCRIPTION:
- 97W
- SPEED INDEX:
- W
- TEMPERATURE:
- ATIRE RIM DIAMETER=17TIRE TYPE=TRACTION=ATREAD WEAR=380TREAD DEPTH=UQTG=380 A AWARRANTY=
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