Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/70-14 | 170/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.2 (614.6) | 23.37 (593.6) | -0.83 (-21) -3.4% |
| Width inches (mm) | 7.28 (185) | 6.69 (170) | -0.59 (-15) -8.1% |
| Circum. inches (mm) | 76.02 (1930.82) | 73.42 (1864.85) | -2.6 (-65.97) -3.4% |
| Sidewall Height inches (mm) | 5.1 (129.5) | 4.69 (119) | -0.41 (-10.5) -8.1% |
| Revolutions per mile (km) | 833.5 (517.91) | 862.99 (536.24) | 29.49 (18.32) 3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.32 mph (31.09 km/h) |
| 25 mph (40.23 km/h) | 24.15 mph (38.86 km/h) |
| 30 mph (48.28 km/h) | 28.97 mph (46.63 km/h) |
| 35 mph (56.33 km/h) | 33.8 mph (54.4 km/h) |
| 40 mph (64.37 km/h) | 38.63 mph (62.17 km/h) |
| 45 mph (72.42 km/h) | 43.46 mph (69.95 km/h) |
| 50 mph (80.47 km/h) | 48.29 mph (77.72 km/h) |
| 55 mph (88.51 km/h) | 53.12 mph (85.49 km/h) |
| 60 mph (96.56 km/h) | 57.95 mph (93.26 km/h) |
| 65 mph (104.61 km/h) | 62.78 mph (101.03 km/h) |
| 70 mph (112.65 km/h) | 67.61 mph (108.81 km/h) |
| 75 mph (120.7 km/h) | 72.44 mph (116.58 km/h) |
| 80 mph (128.75 km/h) | 77.27 mph (124.35 km/h) |
| 85 mph (136.79 km/h) | 82.1 mph (132.12 km/h) |
| 90 mph (144.84 km/h) | 86.92 mph (139.89 km/h) |
| 95 mph (152.89 km/h) | 91.75 mph (147.66 km/h) |
| 100 mph (160.93 km/h) | 96.58 mph (155.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2196 | 2551 | 2748 | 2869 | 3000 | 3093 | 3196 | 3318 | 3486 | 3654 | 3841 | 3990 | 4261 | 4560 | 4794 | 4944 | 5028 | 5336 | 5766 | 6701 |
Better Fuel Economy Factory Ratios Increased Power
