Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/90-16 | 164/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.28 (667.4) | 25.33 (643.4) | -0.94 (-24) -3.6% |
| Width inches (mm) | 5.71 (145) | 6.46 (164) | 0.75 (19) 13.1% |
| Circum. inches (mm) | 82.55 (2096.7) | 79.58 (2021.3) | -2.97 (-75.4) -3.6% |
| Sidewall Height inches (mm) | 5.14 (130.5) | 5.17 (131.2) | 0.03 (0.7) 0.5% |
| Revolutions per mile (km) | 767.56 (476.94) | 796.19 (494.73) | 28.63 (17.79) 3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.28 mph (31.03 km/h) |
| 25 mph (40.23 km/h) | 24.1 mph (38.79 km/h) |
| 30 mph (48.28 km/h) | 28.92 mph (46.54 km/h) |
| 35 mph (56.33 km/h) | 33.74 mph (54.3 km/h) |
| 40 mph (64.37 km/h) | 38.56 mph (62.06 km/h) |
| 45 mph (72.42 km/h) | 43.38 mph (69.82 km/h) |
| 50 mph (80.47 km/h) | 48.2 mph (77.57 km/h) |
| 55 mph (88.51 km/h) | 53.02 mph (85.33 km/h) |
| 60 mph (96.56 km/h) | 57.84 mph (93.09 km/h) |
| 65 mph (104.61 km/h) | 62.66 mph (100.85 km/h) |
| 70 mph (112.65 km/h) | 67.48 mph (108.6 km/h) |
| 75 mph (120.7 km/h) | 72.3 mph (116.36 km/h) |
| 80 mph (128.75 km/h) | 77.12 mph (124.12 km/h) |
| 85 mph (136.79 km/h) | 81.94 mph (131.88 km/h) |
| 90 mph (144.84 km/h) | 86.76 mph (139.63 km/h) |
| 95 mph (152.89 km/h) | 91.58 mph (147.39 km/h) |
| 100 mph (160.93 km/h) | 96.4 mph (155.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2354 | 2535 | 2647 | 2768 | 2854 | 2949 | 3061 | 3216 | 3371 | 3544 | 3682 | 3932 | 4208 | 4423 | 4561 | 4639 | 4923 | 5320 | 6182 |
Better Fuel Economy Factory Ratios Increased Power
