Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 125/30-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 17.95 (456) | -4.92 (-125) -21.5% |
| Width inches (mm) | 4.92 (125) | 4.92 (125) | 0 (0) 0% |
| Circum. inches (mm) | 71.86 (1825.27) | 56.4 (1432.57) | -15.46 (-392.7) -21.5% |
| Sidewall Height inches (mm) | 3.94 (100) | 1.48 (37.5) | -2.46 (-62.5) -62.5% |
| Revolutions per mile (km) | 881.7 (547.86) | 1123.4 (698.05) | 241.7 (150.18) 27.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.7 mph (25.26 km/h) |
| 25 mph (40.23 km/h) | 19.62 mph (31.58 km/h) |
| 30 mph (48.28 km/h) | 23.55 mph (37.89 km/h) |
| 35 mph (56.33 km/h) | 27.47 mph (44.21 km/h) |
| 40 mph (64.37 km/h) | 31.39 mph (50.52 km/h) |
| 45 mph (72.42 km/h) | 35.32 mph (56.84 km/h) |
| 50 mph (80.47 km/h) | 39.24 mph (63.16 km/h) |
| 55 mph (88.51 km/h) | 43.17 mph (69.47 km/h) |
| 60 mph (96.56 km/h) | 47.09 mph (75.79 km/h) |
| 65 mph (104.61 km/h) | 51.02 mph (82.1 km/h) |
| 70 mph (112.65 km/h) | 54.94 mph (88.42 km/h) |
| 75 mph (120.7 km/h) | 58.86 mph (94.73 km/h) |
| 80 mph (128.75 km/h) | 62.79 mph (101.05 km/h) |
| 85 mph (136.79 km/h) | 66.71 mph (107.36 km/h) |
| 90 mph (144.84 km/h) | 70.64 mph (113.68 km/h) |
| 95 mph (152.89 km/h) | 74.56 mph (119.99 km/h) |
| 100 mph (160.93 km/h) | 78.49 mph (126.31 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
