Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-12 | 175/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.76 (552.8) | 21.96 (557.7) | 0.19 (4.9) 0.9% |
| Width inches (mm) | 6.1 (155) | 6.89 (175) | 0.79 (20) 12.9% |
| Circum. inches (mm) | 68.37 (1736.67) | 68.98 (1752.07) | 0.61 (15.39) 0.9% |
| Sidewall Height inches (mm) | 4.88 (124) | 4.48 (113.75) | -0.4 (-10.25) -8.3% |
| Revolutions per mile (km) | 926.68 (575.81) | 918.54 (570.75) | -8.14 (-5.06) -0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.18 mph (32.47 km/h) |
| 25 mph (40.23 km/h) | 25.22 mph (40.59 km/h) |
| 30 mph (48.28 km/h) | 30.27 mph (48.71 km/h) |
| 35 mph (56.33 km/h) | 35.31 mph (56.83 km/h) |
| 40 mph (64.37 km/h) | 40.35 mph (64.94 km/h) |
| 45 mph (72.42 km/h) | 45.4 mph (73.06 km/h) |
| 50 mph (80.47 km/h) | 50.44 mph (81.18 km/h) |
| 55 mph (88.51 km/h) | 55.49 mph (89.3 km/h) |
| 60 mph (96.56 km/h) | 60.53 mph (97.42 km/h) |
| 65 mph (104.61 km/h) | 65.58 mph (105.53 km/h) |
| 70 mph (112.65 km/h) | 70.62 mph (113.65 km/h) |
| 75 mph (120.7 km/h) | 75.66 mph (121.77 km/h) |
| 80 mph (128.75 km/h) | 80.71 mph (129.89 km/h) |
| 85 mph (136.79 km/h) | 85.75 mph (138.01 km/h) |
| 90 mph (144.84 km/h) | 90.8 mph (146.13 km/h) |
| 95 mph (152.89 km/h) | 95.84 mph (154.24 km/h) |
| 100 mph (160.93 km/h) | 100.89 mph (162.36 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
