Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 230/60-15 | 140/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.87 (657) | 25.82 (655.8) | -0.05 (-1.2) -0.2% |
| Width inches (mm) | 9.06 (230) | 5.51 (140) | -3.54 (-90) -39.1% |
| Circum. inches (mm) | 81.26 (2064.03) | 81.11 (2060.26) | -0.15 (-3.77) -0.2% |
| Sidewall Height inches (mm) | 5.43 (138) | 4.41 (112) | -1.02 (-26) -18.8% |
| Revolutions per mile (km) | 779.71 (484.49) | 781.14 (485.38) | 1.43 (0.89) 0.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.96 mph (32.13 km/h) |
| 25 mph (40.23 km/h) | 24.95 mph (40.16 km/h) |
| 30 mph (48.28 km/h) | 29.95 mph (48.19 km/h) |
| 35 mph (56.33 km/h) | 34.94 mph (56.22 km/h) |
| 40 mph (64.37 km/h) | 39.93 mph (64.26 km/h) |
| 45 mph (72.42 km/h) | 44.92 mph (72.29 km/h) |
| 50 mph (80.47 km/h) | 49.91 mph (80.32 km/h) |
| 55 mph (88.51 km/h) | 54.9 mph (88.35 km/h) |
| 60 mph (96.56 km/h) | 59.89 mph (96.38 km/h) |
| 65 mph (104.61 km/h) | 64.88 mph (104.42 km/h) |
| 70 mph (112.65 km/h) | 69.87 mph (112.45 km/h) |
| 75 mph (120.7 km/h) | 74.86 mph (120.48 km/h) |
| 80 mph (128.75 km/h) | 79.85 mph (128.51 km/h) |
| 85 mph (136.79 km/h) | 84.84 mph (136.54 km/h) |
| 90 mph (144.84 km/h) | 89.84 mph (144.58 km/h) |
| 95 mph (152.89 km/h) | 94.83 mph (152.61 km/h) |
| 100 mph (160.93 km/h) | 99.82 mph (160.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 2309 | 2487 | 2597 | 2715 | 2800 | 2893 | 3003 | 3155 | 3307 | 3477 | 3612 | 3857 | 4128 | 4339 | 4475 | 4551 | 4830 | 5219 | 6065 |
Better Fuel Economy Factory Ratios Increased Power
