Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-14 | 175/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.13 (587.6) | 25.02 (635.6) | 1.89 (48) 8.2% |
| Width inches (mm) | 5.71 (145) | 6.89 (175) | 1.18 (30) 20.7% |
| Circum. inches (mm) | 72.68 (1846) | 78.61 (1996.8) | 5.94 (150.8) 8.2% |
| Sidewall Height inches (mm) | 4.57 (116) | 5.51 (140) | 0.94 (24) 20.7% |
| Revolutions per mile (km) | 871.8 (541.71) | 805.96 (500.8) | -65.84 (-40.91) -7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.63 mph (34.82 km/h) |
| 25 mph (40.23 km/h) | 27.04 mph (43.52 km/h) |
| 30 mph (48.28 km/h) | 32.45 mph (52.22 km/h) |
| 35 mph (56.33 km/h) | 37.86 mph (60.93 km/h) |
| 40 mph (64.37 km/h) | 43.27 mph (69.63 km/h) |
| 45 mph (72.42 km/h) | 48.68 mph (78.34 km/h) |
| 50 mph (80.47 km/h) | 54.08 mph (87.04 km/h) |
| 55 mph (88.51 km/h) | 59.49 mph (95.74 km/h) |
| 60 mph (96.56 km/h) | 64.9 mph (104.45 km/h) |
| 65 mph (104.61 km/h) | 70.31 mph (113.15 km/h) |
| 70 mph (112.65 km/h) | 75.72 mph (121.86 km/h) |
| 75 mph (120.7 km/h) | 81.13 mph (130.56 km/h) |
| 80 mph (128.75 km/h) | 86.54 mph (139.26 km/h) |
| 85 mph (136.79 km/h) | 91.94 mph (147.97 km/h) |
| 90 mph (144.84 km/h) | 97.35 mph (156.67 km/h) |
| 95 mph (152.89 km/h) | 102.76 mph (165.38 km/h) |
| 100 mph (160.93 km/h) | 108.17 mph (174.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2051 | 2383 | 2566 | 2679 | 2802 | 2889 | 2985 | 3098 | 3255 | 3413 | 3587 | 3727 | 3980 | 4259 | 4477 | 4617 | 4696 | 4984 | 5385 | 6258 |
Better Fuel Economy Factory Ratios Increased Power
