Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-15 | 135/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.85 (555) | 21.38 (543) | -0.47 (-12) -2.2% |
| Width inches (mm) | 5.71 (145) | 5.31 (135) | -0.39 (-10) -6.9% |
| Circum. inches (mm) | 68.65 (1743.58) | 67.16 (1705.88) | -1.48 (-37.7) -2.2% |
| Sidewall Height inches (mm) | 3.43 (87) | 3.19 (81) | -0.24 (-6) -6.9% |
| Revolutions per mile (km) | 923.01 (573.53) | 943.41 (586.2) | 20.4 (12.67) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.36 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.24 km/h) |
| 35 mph (56.33 km/h) | 34.24 mph (55.11 km/h) |
| 40 mph (64.37 km/h) | 39.14 mph (62.98 km/h) |
| 45 mph (72.42 km/h) | 44.03 mph (70.85 km/h) |
| 50 mph (80.47 km/h) | 48.92 mph (78.73 km/h) |
| 55 mph (88.51 km/h) | 53.81 mph (86.6 km/h) |
| 60 mph (96.56 km/h) | 58.7 mph (94.47 km/h) |
| 65 mph (104.61 km/h) | 63.59 mph (102.35 km/h) |
| 70 mph (112.65 km/h) | 68.49 mph (110.22 km/h) |
| 75 mph (120.7 km/h) | 73.38 mph (118.09 km/h) |
| 80 mph (128.75 km/h) | 78.27 mph (125.96 km/h) |
| 85 mph (136.79 km/h) | 83.16 mph (133.84 km/h) |
| 90 mph (144.84 km/h) | 88.05 mph (141.71 km/h) |
| 95 mph (152.89 km/h) | 92.95 mph (149.58 km/h) |
| 100 mph (160.93 km/h) | 97.84 mph (157.46 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
