Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-12 | 160/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.13 (536.8) | 22.08 (560.8) | 0.94 (24) 4.5% |
| Width inches (mm) | 5.71 (145) | 6.3 (160) | 0.59 (15) 10.3% |
| Circum. inches (mm) | 66.39 (1686.41) | 69.36 (1761.81) | 2.97 (75.4) 4.5% |
| Sidewall Height inches (mm) | 4.57 (116) | 5.04 (128) | 0.47 (12) 10.3% |
| Revolutions per mile (km) | 954.3 (592.98) | 913.46 (567.6) | -40.84 (-25.38) -4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.89 mph (33.63 km/h) |
| 25 mph (40.23 km/h) | 26.12 mph (42.03 km/h) |
| 30 mph (48.28 km/h) | 31.34 mph (50.44 km/h) |
| 35 mph (56.33 km/h) | 36.56 mph (58.85 km/h) |
| 40 mph (64.37 km/h) | 41.79 mph (67.25 km/h) |
| 45 mph (72.42 km/h) | 47.01 mph (75.66 km/h) |
| 50 mph (80.47 km/h) | 52.24 mph (84.07 km/h) |
| 55 mph (88.51 km/h) | 57.46 mph (92.47 km/h) |
| 60 mph (96.56 km/h) | 62.68 mph (100.88 km/h) |
| 65 mph (104.61 km/h) | 67.91 mph (109.28 km/h) |
| 70 mph (112.65 km/h) | 73.13 mph (117.69 km/h) |
| 75 mph (120.7 km/h) | 78.35 mph (126.1 km/h) |
| 80 mph (128.75 km/h) | 83.58 mph (134.5 km/h) |
| 85 mph (136.79 km/h) | 88.8 mph (142.91 km/h) |
| 90 mph (144.84 km/h) | 94.02 mph (151.32 km/h) |
| 95 mph (152.89 km/h) | 99.25 mph (159.72 km/h) |
| 100 mph (160.93 km/h) | 104.47 mph (168.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2325 | 2700 | 2908 | 3037 | 3175 | 3274 | 3383 | 3512 | 3690 | 3868 | 4066 | 4224 | 4511 | 4827 | 5075 | 5233 | 5322 | 5648 | 6103 | 7092 |
Better Fuel Economy Factory Ratios Increased Power
