Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 125/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 20.41 (518.5) | -2.46 (-62.5) -10.8% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 71.86 (1825.27) | 64.13 (1628.92) | -7.73 (-196.35) -10.8% |
| Sidewall Height inches (mm) | 3.94 (100) | 2.71 (68.75) | -1.23 (-31.25) -31.3% |
| Revolutions per mile (km) | 881.7 (547.86) | 987.98 (613.9) | 106.28 (66.04) 12.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.85 mph (28.72 km/h) |
| 25 mph (40.23 km/h) | 22.31 mph (35.91 km/h) |
| 30 mph (48.28 km/h) | 26.77 mph (43.09 km/h) |
| 35 mph (56.33 km/h) | 31.23 mph (50.27 km/h) |
| 40 mph (64.37 km/h) | 35.7 mph (57.45 km/h) |
| 45 mph (72.42 km/h) | 40.16 mph (64.63 km/h) |
| 50 mph (80.47 km/h) | 44.62 mph (71.81 km/h) |
| 55 mph (88.51 km/h) | 49.08 mph (78.99 km/h) |
| 60 mph (96.56 km/h) | 53.55 mph (86.17 km/h) |
| 65 mph (104.61 km/h) | 58.01 mph (93.35 km/h) |
| 70 mph (112.65 km/h) | 62.47 mph (100.54 km/h) |
| 75 mph (120.7 km/h) | 66.93 mph (107.72 km/h) |
| 80 mph (128.75 km/h) | 71.39 mph (114.9 km/h) |
| 85 mph (136.79 km/h) | 75.86 mph (122.08 km/h) |
| 90 mph (144.84 km/h) | 80.32 mph (129.26 km/h) |
| 95 mph (152.89 km/h) | 84.78 mph (136.44 km/h) |
| 100 mph (160.93 km/h) | 89.24 mph (143.62 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
