Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-15 | 235/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.06 (738) | 27.95 (710) | -1.1 (-28) -3.8% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 91.28 (2318.5) | 87.82 (2230.53) | -3.46 (-87.96) -3.8% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 6.48 (164.5) | -0.55 (-14) -7.8% |
| Revolutions per mile (km) | 694.13 (431.31) | 721.51 (448.32) | 27.37 (17.01) 3.9% |
235/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.24 mph (30.97 km/h) |
| 25 mph (40.23 km/h) | 24.05 mph (38.71 km/h) |
| 30 mph (48.28 km/h) | 28.86 mph (46.45 km/h) |
| 35 mph (56.33 km/h) | 33.67 mph (54.19 km/h) |
| 40 mph (64.37 km/h) | 38.48 mph (61.93 km/h) |
| 45 mph (72.42 km/h) | 43.29 mph (69.67 km/h) |
| 50 mph (80.47 km/h) | 48.1 mph (77.41 km/h) |
| 55 mph (88.51 km/h) | 52.91 mph (85.16 km/h) |
| 60 mph (96.56 km/h) | 57.72 mph (92.9 km/h) |
| 65 mph (104.61 km/h) | 62.53 mph (100.64 km/h) |
| 70 mph (112.65 km/h) | 67.34 mph (108.38 km/h) |
| 75 mph (120.7 km/h) | 72.15 mph (116.12 km/h) |
| 80 mph (128.75 km/h) | 76.96 mph (123.86 km/h) |
| 85 mph (136.79 km/h) | 81.78 mph (131.6 km/h) |
| 90 mph (144.84 km/h) | 86.59 mph (139.35 km/h) |
| 95 mph (152.89 km/h) | 91.4 mph (147.09 km/h) |
| 100 mph (160.93 km/h) | 96.21 mph (154.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1836 | 2133 | 2297 | 2399 | 2508 | 2586 | 2672 | 2774 | 2914 | 3055 | 3211 | 3336 | 3563 | 3813 | 4008 | 4133 | 4203 | 4461 | 4821 | 5602 |
Better Fuel Economy Factory Ratios Increased Power
