Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-14 | 135/45-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.13 (587.6) | 18.78 (477.1) | -4.35 (-110.5) -18.8% |
| Width inches (mm) | 5.71 (145) | 5.31 (135) | -0.39 (-10) -6.9% |
| Circum. inches (mm) | 72.68 (1846) | 59.01 (1498.85) | -13.67 (-347.15) -18.8% |
| Sidewall Height inches (mm) | 4.57 (116) | 2.39 (60.75) | -2.18 (-55.25) -47.6% |
| Revolutions per mile (km) | 871.8 (541.71) | 1073.72 (667.18) | 201.92 (125.46) 23.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.24 mph (26.13 km/h) |
| 25 mph (40.23 km/h) | 20.3 mph (32.67 km/h) |
| 30 mph (48.28 km/h) | 24.36 mph (39.2 km/h) |
| 35 mph (56.33 km/h) | 28.42 mph (45.73 km/h) |
| 40 mph (64.37 km/h) | 32.48 mph (52.27 km/h) |
| 45 mph (72.42 km/h) | 36.54 mph (58.8 km/h) |
| 50 mph (80.47 km/h) | 40.6 mph (65.34 km/h) |
| 55 mph (88.51 km/h) | 44.66 mph (71.87 km/h) |
| 60 mph (96.56 km/h) | 48.72 mph (78.4 km/h) |
| 65 mph (104.61 km/h) | 52.78 mph (84.94 km/h) |
| 70 mph (112.65 km/h) | 56.84 mph (91.47 km/h) |
| 75 mph (120.7 km/h) | 60.9 mph (98 km/h) |
| 80 mph (128.75 km/h) | 64.96 mph (104.54 km/h) |
| 85 mph (136.79 km/h) | 69.02 mph (111.07 km/h) |
| 90 mph (144.84 km/h) | 73.08 mph (117.6 km/h) |
| 95 mph (152.89 km/h) | 77.13 mph (124.14 km/h) |
| 100 mph (160.93 km/h) | 81.19 mph (130.67 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
