Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/90-12 | 90/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.09 (484.8) | 17.67 (448.8) | -1.42 (-36) -7.4% |
| Width inches (mm) | 3.94 (100) | 3.54 (90) | -0.39 (-10) -10% |
| Circum. inches (mm) | 59.96 (1523.04) | 55.51 (1409.95) | -4.45 (-113.1) -7.4% |
| Sidewall Height inches (mm) | 3.54 (90) | 2.83 (72) | -0.71 (-18) -20% |
| Revolutions per mile (km) | 1056.66 (656.58) | 1141.42 (709.25) | 84.76 (52.67) 8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.51 mph (29.8 km/h) |
| 25 mph (40.23 km/h) | 23.14 mph (37.25 km/h) |
| 30 mph (48.28 km/h) | 27.77 mph (44.7 km/h) |
| 35 mph (56.33 km/h) | 32.4 mph (52.14 km/h) |
| 40 mph (64.37 km/h) | 37.03 mph (59.59 km/h) |
| 45 mph (72.42 km/h) | 41.66 mph (67.04 km/h) |
| 50 mph (80.47 km/h) | 46.29 mph (74.49 km/h) |
| 55 mph (88.51 km/h) | 50.92 mph (81.94 km/h) |
| 60 mph (96.56 km/h) | 55.54 mph (89.39 km/h) |
| 65 mph (104.61 km/h) | 60.17 mph (96.84 km/h) |
| 70 mph (112.65 km/h) | 64.8 mph (104.29 km/h) |
| 75 mph (120.7 km/h) | 69.43 mph (111.74 km/h) |
| 80 mph (128.75 km/h) | 74.06 mph (119.19 km/h) |
| 85 mph (136.79 km/h) | 78.69 mph (126.64 km/h) |
| 90 mph (144.84 km/h) | 83.32 mph (134.09 km/h) |
| 95 mph (152.89 km/h) | 87.95 mph (141.53 km/h) |
| 100 mph (160.93 km/h) | 92.57 mph (148.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
