Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-19 | 155/80-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.02 (762.6) | 28.76 (730.6) | -1.26 (-32) -4.2% |
| Width inches (mm) | 6.89 (175) | 6.1 (155) | -0.79 (-20) -11.4% |
| Circum. inches (mm) | 94.32 (2395.78) | 90.36 (2295.25) | -3.96 (-100.53) -4.2% |
| Sidewall Height inches (mm) | 5.51 (140) | 4.88 (124) | -0.63 (-16) -11.4% |
| Revolutions per mile (km) | 671.74 (417.4) | 701.16 (435.68) | 29.42 (18.28) 4.4% |
155/80-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.16 mph (30.84 km/h) |
| 25 mph (40.23 km/h) | 23.95 mph (38.55 km/h) |
| 30 mph (48.28 km/h) | 28.74 mph (46.25 km/h) |
| 35 mph (56.33 km/h) | 33.53 mph (53.96 km/h) |
| 40 mph (64.37 km/h) | 38.32 mph (61.67 km/h) |
| 45 mph (72.42 km/h) | 43.11 mph (69.38 km/h) |
| 50 mph (80.47 km/h) | 47.9 mph (77.09 km/h) |
| 55 mph (88.51 km/h) | 52.69 mph (84.8 km/h) |
| 60 mph (96.56 km/h) | 57.48 mph (92.51 km/h) |
| 65 mph (104.61 km/h) | 62.27 mph (100.22 km/h) |
| 70 mph (112.65 km/h) | 67.06 mph (107.93 km/h) |
| 75 mph (120.7 km/h) | 71.85 mph (115.64 km/h) |
| 80 mph (128.75 km/h) | 76.64 mph (123.35 km/h) |
| 85 mph (136.79 km/h) | 81.43 mph (131.05 km/h) |
| 90 mph (144.84 km/h) | 86.22 mph (138.76 km/h) |
| 95 mph (152.89 km/h) | 91.01 mph (146.47 km/h) |
| 100 mph (160.93 km/h) | 95.8 mph (154.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1784 | 2073 | 2232 | 2331 | 2437 | 2513 | 2597 | 2695 | 2832 | 2969 | 3121 | 3242 | 3462 | 3705 | 3895 | 4017 | 4085 | 4336 | 4685 | 5444 |
Better Fuel Economy Factory Ratios Increased Power
