Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-18 | 125/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.89 (632.2) | 23.91 (607.2) | -0.98 (-25) -4% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 78.19 (1986.11) | 75.1 (1907.58) | -3.09 (-78.54) -4% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 2.95 (75) | -0.49 (-12.5) -14.3% |
| Revolutions per mile (km) | 810.3 (503.49) | 843.66 (524.22) | 33.36 (20.73) 4.1% |
125/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.21 mph (30.91 km/h) |
| 25 mph (40.23 km/h) | 24.01 mph (38.64 km/h) |
| 30 mph (48.28 km/h) | 28.81 mph (46.37 km/h) |
| 35 mph (56.33 km/h) | 33.62 mph (54.1 km/h) |
| 40 mph (64.37 km/h) | 38.42 mph (61.83 km/h) |
| 45 mph (72.42 km/h) | 43.22 mph (69.56 km/h) |
| 50 mph (80.47 km/h) | 48.02 mph (77.29 km/h) |
| 55 mph (88.51 km/h) | 52.83 mph (85.01 km/h) |
| 60 mph (96.56 km/h) | 57.63 mph (92.74 km/h) |
| 65 mph (104.61 km/h) | 62.43 mph (100.47 km/h) |
| 70 mph (112.65 km/h) | 67.23 mph (108.2 km/h) |
| 75 mph (120.7 km/h) | 72.03 mph (115.93 km/h) |
| 80 mph (128.75 km/h) | 76.84 mph (123.66 km/h) |
| 85 mph (136.79 km/h) | 81.64 mph (131.39 km/h) |
| 90 mph (144.84 km/h) | 86.44 mph (139.11 km/h) |
| 95 mph (152.89 km/h) | 91.24 mph (146.84 km/h) |
| 100 mph (160.93 km/h) | 96.05 mph (154.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2147 | 2494 | 2686 | 2805 | 2933 | 3024 | 3125 | 3243 | 3408 | 3572 | 3755 | 3901 | 4166 | 4458 | 4687 | 4833 | 4915 | 5217 | 5637 | 6550 |
Better Fuel Economy Factory Ratios Increased Power
