Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/60-14 | 140/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.61 (523.6) | 24.92 (633) | 4.31 (109.4) 20.9% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 64.76 (1644.94) | 78.29 (1988.63) | 13.53 (343.69) 20.9% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.96 (126) | 1.65 (42) 50% |
| Revolutions per mile (km) | 978.36 (607.92) | 809.27 (502.86) | -169.09 (-105.07) -17.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.18 mph (38.91 km/h) |
| 25 mph (40.23 km/h) | 30.22 mph (48.64 km/h) |
| 30 mph (48.28 km/h) | 36.27 mph (58.37 km/h) |
| 35 mph (56.33 km/h) | 42.31 mph (68.1 km/h) |
| 40 mph (64.37 km/h) | 48.36 mph (77.82 km/h) |
| 45 mph (72.42 km/h) | 54.4 mph (87.55 km/h) |
| 50 mph (80.47 km/h) | 60.45 mph (97.28 km/h) |
| 55 mph (88.51 km/h) | 66.49 mph (107.01 km/h) |
| 60 mph (96.56 km/h) | 72.54 mph (116.74 km/h) |
| 65 mph (104.61 km/h) | 78.58 mph (126.46 km/h) |
| 70 mph (112.65 km/h) | 84.63 mph (136.19 km/h) |
| 75 mph (120.7 km/h) | 90.67 mph (145.92 km/h) |
| 80 mph (128.75 km/h) | 96.72 mph (155.65 km/h) |
| 85 mph (136.79 km/h) | 102.76 mph (165.38 km/h) |
| 90 mph (144.84 km/h) | 108.8 mph (175.1 km/h) |
| 95 mph (152.89 km/h) | 114.85 mph (184.83 km/h) |
| 100 mph (160.93 km/h) | 120.89 mph (194.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2059 | 2392 | 2576 | 2690 | 2813 | 2901 | 2997 | 3111 | 3269 | 3427 | 3602 | 3742 | 3996 | 4277 | 4496 | 4636 | 4715 | 5004 | 5407 | 6284 |
Better Fuel Economy Factory Ratios Increased Power
