Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 170/50-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 20.69 (525.6) | -0.73 (-18.5) -3.4% |
| Width inches (mm) | 5.71 (145) | 6.69 (170) | 0.98 (25) 17.2% |
| Circum. inches (mm) | 67.3 (1709.34) | 65.01 (1651.22) | -2.29 (-58.12) -3.4% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 3.35 (85) | -0.36 (-9.25) -9.8% |
| Revolutions per mile (km) | 941.5 (585.02) | 974.64 (605.61) | 33.14 (20.59) 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 (38.87 km/h) |
| 30 mph (48.28 km/h) | 28.98 mph (46.64 km/h) |
| 35 mph (56.33 km/h) | 33.81 mph (54.41 km/h) |
| 40 mph (64.37 km/h) | 38.64 mph (62.19 km/h) |
| 45 mph (72.42 km/h) | 43.47 mph (69.96 km/h) |
| 50 mph (80.47 km/h) | 48.3 mph (77.73 km/h) |
| 55 mph (88.51 km/h) | 53.13 mph (85.5 km/h) |
| 60 mph (96.56 km/h) | 57.96 mph (93.28 km/h) |
| 65 mph (104.61 km/h) | 62.79 mph (101.05 km/h) |
| 70 mph (112.65 km/h) | 67.62 mph (108.82 km/h) |
| 75 mph (120.7 km/h) | 72.45 mph (116.6 km/h) |
| 80 mph (128.75 km/h) | 77.28 mph (124.37 km/h) |
| 85 mph (136.79 km/h) | 82.11 mph (132.14 km/h) |
| 90 mph (144.84 km/h) | 86.94 mph (139.92 km/h) |
| 95 mph (152.89 km/h) | 91.77 mph (147.69 km/h) |
| 100 mph (160.93 km/h) | 96.6 mph (155.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
