Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/70-14 | 140/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.72 (551.6) | 22.82 (579.6) | 1.1 (28) 5.1% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 68.22 (1732.9) | 71.69 (1820.87) | 3.46 (87.96) 5.1% |
| Sidewall Height inches (mm) | 3.86 (98) | 4.41 (112) | 0.55 (14) 14.3% |
| Revolutions per mile (km) | 928.7 (577.07) | 883.83 (549.19) | -44.86 (-27.88) -4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.02 mph (33.82 km/h) |
| 25 mph (40.23 km/h) | 26.27 mph (42.28 km/h) |
| 30 mph (48.28 km/h) | 31.52 mph (50.73 km/h) |
| 35 mph (56.33 km/h) | 36.78 mph (59.19 km/h) |
| 40 mph (64.37 km/h) | 42.03 mph (67.64 km/h) |
| 45 mph (72.42 km/h) | 47.28 mph (76.1 km/h) |
| 50 mph (80.47 km/h) | 52.54 mph (84.55 km/h) |
| 55 mph (88.51 km/h) | 57.79 mph (93.01 km/h) |
| 60 mph (96.56 km/h) | 63.05 mph (101.46 km/h) |
| 65 mph (104.61 km/h) | 68.3 mph (109.92 km/h) |
| 70 mph (112.65 km/h) | 73.55 mph (118.37 km/h) |
| 75 mph (120.7 km/h) | 78.81 mph (126.83 km/h) |
| 80 mph (128.75 km/h) | 84.06 mph (135.28 km/h) |
| 85 mph (136.79 km/h) | 89.31 mph (143.74 km/h) |
| 90 mph (144.84 km/h) | 94.57 mph (152.19 km/h) |
| 95 mph (152.89 km/h) | 99.82 mph (160.65 km/h) |
| 100 mph (160.93 km/h) | 105.08 mph (169.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2249 | 2613 | 2814 | 2938 | 3072 | 3168 | 3273 | 3398 | 3570 | 3742 | 3934 | 4087 | 4364 | 4671 | 4910 | 5063 | 5149 | 5465 | 5905 | 6862 |
Better Fuel Economy Factory Ratios Increased Power
