Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/80-18 | 130/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.3 (617.2) | 24.17 (613.8) | -0.13 (-3.4) -0.6% |
| Width inches (mm) | 3.94 (100) | 5.12 (130) | 1.18 (30) 30% |
| Circum. inches (mm) | 76.34 (1938.99) | 75.92 (1928.31) | -0.42 (-10.68) -0.6% |
| Sidewall Height inches (mm) | 3.15 (80) | 3.58 (91) | 0.43 (11) 13.8% |
| Revolutions per mile (km) | 829.99 (515.73) | 834.59 (518.59) | 4.6 (2.86) 0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.89 mph (32.01 km/h) |
| 25 mph (40.23 km/h) | 24.86 mph (40.01 km/h) |
| 30 mph (48.28 km/h) | 29.83 mph (48.01 km/h) |
| 35 mph (56.33 km/h) | 34.81 mph (56.02 km/h) |
| 40 mph (64.37 km/h) | 39.78 mph (64.02 km/h) |
| 45 mph (72.42 km/h) | 44.75 mph (72.02 km/h) |
| 50 mph (80.47 km/h) | 49.72 mph (80.02 km/h) |
| 55 mph (88.51 km/h) | 54.7 mph (88.03 km/h) |
| 60 mph (96.56 km/h) | 59.67 mph (96.03 km/h) |
| 65 mph (104.61 km/h) | 64.64 mph (104.03 km/h) |
| 70 mph (112.65 km/h) | 69.61 mph (112.03 km/h) |
| 75 mph (120.7 km/h) | 74.59 mph (120.04 km/h) |
| 80 mph (128.75 km/h) | 79.56 mph (128.04 km/h) |
| 85 mph (136.79 km/h) | 84.53 mph (136.04 km/h) |
| 90 mph (144.84 km/h) | 89.5 mph (144.04 km/h) |
| 95 mph (152.89 km/h) | 94.48 mph (152.05 km/h) |
| 100 mph (160.93 km/h) | 99.45 mph (160.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2124 | 2467 | 2657 | 2775 | 2901 | 2991 | 3091 | 3208 | 3371 | 3534 | 3715 | 3859 | 4121 | 4410 | 4636 | 4781 | 4862 | 5161 | 5576 | 6480 |
Better Fuel Economy Factory Ratios Increased Power
