Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 325/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 33.63 (854.3) | 3.94 (100) 13.3% |
| Width inches (mm) | 8.46 (215) | 12.8 (325) | 4.33 (110) 51.2% |
| Circum. inches (mm) | 93.3 (2369.7) | 105.66 (2683.86) | 12.37 (314.16) 13.3% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 8.32 (211.25) | 1.97 (50) 31% |
| Revolutions per mile (km) | 679.13 (421.99) | 599.64 (372.6) | -79.5 (-49.4) -11.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.65 mph (36.45 km/h) |
| 25 mph (40.23 km/h) | 28.31 mph (45.57 km/h) |
| 30 mph (48.28 km/h) | 33.98 mph (54.68 km/h) |
| 35 mph (56.33 km/h) | 39.64 mph (63.79 km/h) |
| 40 mph (64.37 km/h) | 45.3 mph (72.91 km/h) |
| 45 mph (72.42 km/h) | 50.97 mph (82.02 km/h) |
| 50 mph (80.47 km/h) | 56.63 mph (91.14 km/h) |
| 55 mph (88.51 km/h) | 62.29 mph (100.25 km/h) |
| 60 mph (96.56 km/h) | 67.95 mph (109.36 km/h) |
| 65 mph (104.61 km/h) | 73.62 mph (118.48 km/h) |
| 70 mph (112.65 km/h) | 79.28 mph (127.59 km/h) |
| 75 mph (120.7 km/h) | 84.94 mph (136.7 km/h) |
| 80 mph (128.75 km/h) | 90.61 mph (145.82 km/h) |
| 85 mph (136.79 km/h) | 96.27 mph (154.93 km/h) |
| 90 mph (144.84 km/h) | 101.93 mph (164.04 km/h) |
| 95 mph (152.89 km/h) | 107.59 mph (173.16 km/h) |
| 100 mph (160.93 km/h) | 113.26 mph (182.27 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1526 | 1773 | 1909 | 1993 | 2084 | 2149 | 2221 | 2305 | 2422 | 2539 | 2669 | 2773 | 2961 | 3169 | 3331 | 3435 | 3493 | 3708 | 4006 | 4656 |
Better Fuel Economy Factory Ratios Increased Power
