Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 265/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 34.74 (882.3) | 9.08 (230.7) 35.4% |
| Width inches (mm) | 6.5 (165) | 10.43 (265) | 3.94 (100) 60.6% |
| Circum. inches (mm) | 80.59 (2047.06) | 109.13 (2771.83) | 28.53 (724.77) 35.4% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 8.87 (225.25) | 3.54 (89.95) 66.5% |
| Revolutions per mile (km) | 786.17 (488.5) | 580.61 (360.77) | -205.57 (-127.73) -26.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.08 mph (43.58 km/h) |
| 25 mph (40.23 km/h) | 33.85 mph (54.48 km/h) |
| 30 mph (48.28 km/h) | 40.62 mph (65.37 km/h) |
| 35 mph (56.33 km/h) | 47.39 mph (76.27 km/h) |
| 40 mph (64.37 km/h) | 54.16 mph (87.17 km/h) |
| 45 mph (72.42 km/h) | 60.93 mph (98.06 km/h) |
| 50 mph (80.47 km/h) | 67.7 mph (108.96 km/h) |
| 55 mph (88.51 km/h) | 74.47 mph (119.85 km/h) |
| 60 mph (96.56 km/h) | 81.24 mph (130.75 km/h) |
| 65 mph (104.61 km/h) | 88.01 mph (141.64 km/h) |
| 70 mph (112.65 km/h) | 94.78 mph (152.54 km/h) |
| 75 mph (120.7 km/h) | 101.55 mph (163.44 km/h) |
| 80 mph (128.75 km/h) | 108.32 mph (174.33 km/h) |
| 85 mph (136.79 km/h) | 115.09 mph (185.23 km/h) |
| 90 mph (144.84 km/h) | 121.86 mph (196.12 km/h) |
| 95 mph (152.89 km/h) | 128.63 mph (207.02 km/h) |
| 100 mph (160.93 km/h) | 135.41 mph (217.91 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
