Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-15 | 145/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.99 (584) | 20.71 (526) | -2.28 (-58) -9.9% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 72.23 (1834.69) | 65.06 (1652.48) | -7.17 (-182.21) -9.9% |
| Sidewall Height inches (mm) | 4 (101.5) | 2.85 (72.5) | -1.14 (-29) -28.6% |
| Revolutions per mile (km) | 877.17 (545.05) | 973.9 (605.15) | 96.72 (60.1) 11% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.01 mph (28.99 km/h) |
| 25 mph (40.23 km/h) | 22.52 mph (36.24 km/h) |
| 30 mph (48.28 km/h) | 27.02 mph (43.49 km/h) |
| 35 mph (56.33 km/h) | 31.52 mph (50.73 km/h) |
| 40 mph (64.37 km/h) | 36.03 mph (57.98 km/h) |
| 45 mph (72.42 km/h) | 40.53 mph (65.23 km/h) |
| 50 mph (80.47 km/h) | 45.03 mph (72.48 km/h) |
| 55 mph (88.51 km/h) | 49.54 mph (79.72 km/h) |
| 60 mph (96.56 km/h) | 54.04 mph (86.97 km/h) |
| 65 mph (104.61 km/h) | 58.54 mph (94.22 km/h) |
| 70 mph (112.65 km/h) | 63.05 mph (101.47 km/h) |
| 75 mph (120.7 km/h) | 67.55 mph (108.71 km/h) |
| 80 mph (128.75 km/h) | 72.05 mph (115.96 km/h) |
| 85 mph (136.79 km/h) | 76.56 mph (123.21 km/h) |
| 90 mph (144.84 km/h) | 81.06 mph (130.46 km/h) |
| 95 mph (152.89 km/h) | 85.57 mph (137.7 km/h) |
| 100 mph (160.93 km/h) | 90.07 mph (144.95 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
