Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/50-15 | 145/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.1 (536) | 20.71 (526) | -0.39 (-10) -1.9% |
| Width inches (mm) | 6.1 (155) | 5.71 (145) | -0.39 (-10) -6.5% |
| Circum. inches (mm) | 66.3 (1683.89) | 65.06 (1652.48) | -1.24 (-31.42) -1.9% |
| Sidewall Height inches (mm) | 3.05 (77.5) | 2.85 (72.5) | -0.2 (-5) -6.5% |
| Revolutions per mile (km) | 955.73 (593.86) | 973.9 (605.15) | 18.17 (11.29) 1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.63 mph (31.59 km/h) |
| 25 mph (40.23 km/h) | 24.53 mph (39.48 km/h) |
| 30 mph (48.28 km/h) | 29.44 mph (47.38 km/h) |
| 35 mph (56.33 km/h) | 34.35 mph (55.28 km/h) |
| 40 mph (64.37 km/h) | 39.25 mph (63.17 km/h) |
| 45 mph (72.42 km/h) | 44.16 mph (71.07 km/h) |
| 50 mph (80.47 km/h) | 49.07 mph (78.97 km/h) |
| 55 mph (88.51 km/h) | 53.97 mph (86.86 km/h) |
| 60 mph (96.56 km/h) | 58.88 mph (94.76 km/h) |
| 65 mph (104.61 km/h) | 63.79 mph (102.66 km/h) |
| 70 mph (112.65 km/h) | 68.69 mph (110.55 km/h) |
| 75 mph (120.7 km/h) | 73.6 mph (118.45 km/h) |
| 80 mph (128.75 km/h) | 78.51 mph (126.35 km/h) |
| 85 mph (136.79 km/h) | 83.41 mph (134.24 km/h) |
| 90 mph (144.84 km/h) | 88.32 mph (142.14 km/h) |
| 95 mph (152.89 km/h) | 93.23 mph (150.04 km/h) |
| 100 mph (160.93 km/h) | 98.13 mph (157.93 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
