Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/66-17 | 265/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.77 (781.6) | 34.74 (882.3) | 3.96 (100.7) 12.9% |
| Width inches (mm) | 10.43 (265) | 10.43 (265) | 0 (0) 0% |
| Circum. inches (mm) | 96.67 (2455.47) | 109.13 (2771.83) | 12.46 (316.36) 12.9% |
| Sidewall Height inches (mm) | 6.89 (174.9) | 8.87 (225.25) | 1.98 (50.35) 28.8% |
| Revolutions per mile (km) | 655.41 (407.25) | 580.61 (360.77) | -74.8 (-46.48) -11.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.58 mph (36.33 km/h) |
| 25 mph (40.23 km/h) | 28.22 mph (45.42 km/h) |
| 30 mph (48.28 km/h) | 33.87 mph (54.5 km/h) |
| 35 mph (56.33 km/h) | 39.51 mph (63.58 km/h) |
| 40 mph (64.37 km/h) | 45.15 mph (72.67 km/h) |
| 45 mph (72.42 km/h) | 50.8 mph (81.75 km/h) |
| 50 mph (80.47 km/h) | 56.44 mph (90.83 km/h) |
| 55 mph (88.51 km/h) | 62.09 mph (99.92 km/h) |
| 60 mph (96.56 km/h) | 67.73 mph (109 km/h) |
| 65 mph (104.61 km/h) | 73.37 mph (118.09 km/h) |
| 70 mph (112.65 km/h) | 79.02 mph (127.17 km/h) |
| 75 mph (120.7 km/h) | 84.66 mph (136.25 km/h) |
| 80 mph (128.75 km/h) | 90.31 mph (145.34 km/h) |
| 85 mph (136.79 km/h) | 95.95 mph (154.42 km/h) |
| 90 mph (144.84 km/h) | 101.6 mph (163.5 km/h) |
| 95 mph (152.89 km/h) | 107.24 mph (172.59 km/h) |
| 100 mph (160.93 km/h) | 112.88 mph (181.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1478 | 1716 | 1848 | 1930 | 2018 | 2081 | 2150 | 2232 | 2345 | 2458 | 2584 | 2685 | 2867 | 3068 | 3225 | 3326 | 3383 | 3590 | 3879 | 4508 |
Better Fuel Economy Factory Ratios Increased Power
