Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/60-18 | 125/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.91 (607.2) | 21.43 (544.3) | -2.48 (-62.9) -10.4% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 75.1 (1907.58) | 67.32 (1709.97) | -7.78 (-197.61) -10.4% |
| Sidewall Height inches (mm) | 2.95 (75) | 2.21 (56.25) | -0.74 (-18.75) -25% |
| Revolutions per mile (km) | 843.66 (524.22) | 941.15 (584.8) | 97.49 (60.58) 11.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.93 mph (28.85 km/h) |
| 25 mph (40.23 km/h) | 22.41 mph (36.07 km/h) |
| 30 mph (48.28 km/h) | 26.89 mph (43.28 km/h) |
| 35 mph (56.33 km/h) | 31.37 mph (50.49 km/h) |
| 40 mph (64.37 km/h) | 35.86 mph (57.71 km/h) |
| 45 mph (72.42 km/h) | 40.34 mph (64.92 km/h) |
| 50 mph (80.47 km/h) | 44.82 mph (72.13 km/h) |
| 55 mph (88.51 km/h) | 49.3 mph (79.34 km/h) |
| 60 mph (96.56 km/h) | 53.78 mph (86.56 km/h) |
| 65 mph (104.61 km/h) | 58.27 mph (93.77 km/h) |
| 70 mph (112.65 km/h) | 62.75 mph (100.98 km/h) |
| 75 mph (120.7 km/h) | 67.23 mph (108.2 km/h) |
| 80 mph (128.75 km/h) | 71.71 mph (115.41 km/h) |
| 85 mph (136.79 km/h) | 76.19 mph (122.62 km/h) |
| 90 mph (144.84 km/h) | 80.68 mph (129.84 km/h) |
| 95 mph (152.89 km/h) | 85.16 mph (137.05 km/h) |
| 100 mph (160.93 km/h) | 89.64 mph (144.26 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
