Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/60-21 | 140/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.14 (689.4) | 23.82 (605) | -3.32 (-84.4) -12.2% |
| Width inches (mm) | 5.12 (130) | 5.51 (140) | 0.39 (10) 7.7% |
| Circum. inches (mm) | 85.27 (2165.81) | 74.83 (1900.66) | -10.44 (-265.15) -12.2% |
| Sidewall Height inches (mm) | 3.07 (78) | 4.41 (112) | 1.34 (34) 43.6% |
| Revolutions per mile (km) | 743.07 (461.72) | 846.73 (526.13) | 103.66 (64.41) 14% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.55 mph (28.25 km/h) |
| 25 mph (40.23 km/h) | 21.94 mph (35.31 km/h) |
| 30 mph (48.28 km/h) | 26.33 mph (42.37 km/h) |
| 35 mph (56.33 km/h) | 30.72 mph (49.43 km/h) |
| 40 mph (64.37 km/h) | 35.1 mph (56.49 km/h) |
| 45 mph (72.42 km/h) | 39.49 mph (63.55 km/h) |
| 50 mph (80.47 km/h) | 43.88 mph (70.62 km/h) |
| 55 mph (88.51 km/h) | 48.27 mph (77.68 km/h) |
| 60 mph (96.56 km/h) | 52.65 mph (84.74 km/h) |
| 65 mph (104.61 km/h) | 57.04 mph (91.8 km/h) |
| 70 mph (112.65 km/h) | 61.43 mph (98.86 km/h) |
| 75 mph (120.7 km/h) | 65.82 mph (105.92 km/h) |
| 80 mph (128.75 km/h) | 70.21 mph (112.99 km/h) |
| 85 mph (136.79 km/h) | 74.59 mph (120.05 km/h) |
| 90 mph (144.84 km/h) | 78.98 mph (127.11 km/h) |
| 95 mph (152.89 km/h) | 83.37 mph (134.17 km/h) |
| 100 mph (160.93 km/h) | 87.76 mph (141.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2155 | 2503 | 2696 | 2815 | 2943 | 3035 | 3136 | 3255 | 3420 | 3585 | 3769 | 3915 | 4181 | 4475 | 4704 | 4851 | 4933 | 5236 | 5657 | 6574 |
Better Fuel Economy Factory Ratios Increased Power
