Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/90-16 | 145/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.28 (667.4) | 25.13 (638.4) | -1.14 (-29) -4.3% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 82.55 (2096.7) | 78.96 (2005.59) | -3.59 (-91.11) -4.3% |
| Sidewall Height inches (mm) | 5.14 (130.5) | 4.57 (116) | -0.57 (-14.5) -11.1% |
| Revolutions per mile (km) | 767.56 (476.94) | 802.43 (498.6) | 34.87 (21.67) 4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.13 mph (30.79 km/h) |
| 25 mph (40.23 km/h) | 23.91 mph (38.49 km/h) |
| 30 mph (48.28 km/h) | 28.7 mph (46.18 km/h) |
| 35 mph (56.33 km/h) | 33.48 mph (53.88 km/h) |
| 40 mph (64.37 km/h) | 38.26 mph (61.58 km/h) |
| 45 mph (72.42 km/h) | 43.04 mph (69.27 km/h) |
| 50 mph (80.47 km/h) | 47.83 mph (76.97 km/h) |
| 55 mph (88.51 km/h) | 52.61 mph (84.67 km/h) |
| 60 mph (96.56 km/h) | 57.39 mph (92.37 km/h) |
| 65 mph (104.61 km/h) | 62.18 mph (100.06 km/h) |
| 70 mph (112.65 km/h) | 66.96 mph (107.76 km/h) |
| 75 mph (120.7 km/h) | 71.74 mph (115.46 km/h) |
| 80 mph (128.75 km/h) | 76.52 mph (123.15 km/h) |
| 85 mph (136.79 km/h) | 81.31 mph (130.85 km/h) |
| 90 mph (144.84 km/h) | 86.09 mph (138.55 km/h) |
| 95 mph (152.89 km/h) | 90.87 mph (146.24 km/h) |
| 100 mph (160.93 km/h) | 95.65 mph (153.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2042 | 2372 | 2555 | 2668 | 2789 | 2876 | 2972 | 3085 | 3241 | 3398 | 3571 | 3710 | 3962 | 4240 | 4458 | 4597 | 4675 | 4962 | 5361 | 6230 |
Better Fuel Economy Factory Ratios Increased Power
