Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/66-17 | 290/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.77 (781.6) | 32.98 (837.8) | 2.21 (56.2) 7.2% |
| Width inches (mm) | 10.43 (265) | 11.42 (290) | 0.98 (25) 9.4% |
| Circum. inches (mm) | 96.67 (2455.47) | 103.62 (2632.03) | 6.95 (176.56) 7.2% |
| Sidewall Height inches (mm) | 6.89 (174.9) | 7.99 (203) | 1.11 (28.1) 16.1% |
| Revolutions per mile (km) | 655.41 (407.25) | 611.45 (379.93) | -43.97 (-27.32) -6.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.44 mph (34.5 km/h) |
| 25 mph (40.23 km/h) | 26.8 mph (43.13 km/h) |
| 30 mph (48.28 km/h) | 32.16 mph (51.75 km/h) |
| 35 mph (56.33 km/h) | 37.52 mph (60.38 km/h) |
| 40 mph (64.37 km/h) | 42.88 mph (69 km/h) |
| 45 mph (72.42 km/h) | 48.24 mph (77.63 km/h) |
| 50 mph (80.47 km/h) | 53.6 mph (86.25 km/h) |
| 55 mph (88.51 km/h) | 58.95 mph (94.88 km/h) |
| 60 mph (96.56 km/h) | 64.31 mph (103.5 km/h) |
| 65 mph (104.61 km/h) | 69.67 mph (112.13 km/h) |
| 70 mph (112.65 km/h) | 75.03 mph (120.75 km/h) |
| 75 mph (120.7 km/h) | 80.39 mph (129.38 km/h) |
| 80 mph (128.75 km/h) | 85.75 mph (138.01 km/h) |
| 85 mph (136.79 km/h) | 91.11 mph (146.63 km/h) |
| 90 mph (144.84 km/h) | 96.47 mph (155.26 km/h) |
| 95 mph (152.89 km/h) | 101.83 mph (163.88 km/h) |
| 100 mph (160.93 km/h) | 107.19 mph (172.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | 1808 | 1947 | 2033 | 2125 | 2192 | 2264 | 2351 | 2470 | 2589 | 2721 | 2827 | 3019 | 3231 | 3397 | 3503 | 3562 | 3781 | 4085 | 4748 |
Better Fuel Economy Factory Ratios Increased Power
