Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 265/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 34.74 (882.3) | 2.01 (51) 6.1% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 102.82 (2611.61) | 109.13 (2771.83) | 6.31 (160.22) 6.1% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 8.87 (225.25) | 1 (25.5) 12.8% |
| Revolutions per mile (km) | 616.23 (382.91) | 580.61 (360.77) | -35.62 (-22.13) -5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.23 mph (34.16 km/h) |
| 25 mph (40.23 km/h) | 26.53 mph (42.7 km/h) |
| 30 mph (48.28 km/h) | 31.84 mph (51.24 km/h) |
| 35 mph (56.33 km/h) | 37.15 mph (59.78 km/h) |
| 40 mph (64.37 km/h) | 42.45 mph (68.32 km/h) |
| 45 mph (72.42 km/h) | 47.76 mph (76.86 km/h) |
| 50 mph (80.47 km/h) | 53.07 mph (85.4 km/h) |
| 55 mph (88.51 km/h) | 58.37 mph (93.94 km/h) |
| 60 mph (96.56 km/h) | 63.68 mph (102.48 km/h) |
| 65 mph (104.61 km/h) | 68.99 mph (111.03 km/h) |
| 70 mph (112.65 km/h) | 74.29 mph (119.57 km/h) |
| 75 mph (120.7 km/h) | 79.6 mph (128.11 km/h) |
| 80 mph (128.75 km/h) | 84.91 mph (136.65 km/h) |
| 85 mph (136.79 km/h) | 90.21 mph (145.19 km/h) |
| 90 mph (144.84 km/h) | 95.52 mph (153.73 km/h) |
| 95 mph (152.89 km/h) | 100.83 mph (162.27 km/h) |
| 100 mph (160.93 km/h) | 106.13 mph (170.81 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
