Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/90-12 | 120/90-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.09 (484.8) | 20.5 (520.8) | 1.42 (36) 7.4% |
| Width inches (mm) | 3.94 (100) | 4.72 (120) | 0.79 (20) 20% |
| Circum. inches (mm) | 59.96 (1523.04) | 64.42 (1636.14) | 4.45 (113.1) 7.4% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.25 (108) | 0.71 (18) 20% |
| Revolutions per mile (km) | 1056.66 (656.58) | 983.62 (611.19) | -73.04 (-45.39) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.58 km/h) |
| 25 mph (40.23 km/h) | 26.86 mph (43.22 km/h) |
| 30 mph (48.28 km/h) | 32.23 mph (51.87 km/h) |
| 35 mph (56.33 km/h) | 37.6 mph (60.51 km/h) |
| 40 mph (64.37 km/h) | 42.97 mph (69.15 km/h) |
| 45 mph (72.42 km/h) | 48.34 mph (77.8 km/h) |
| 50 mph (80.47 km/h) | 53.71 mph (86.44 km/h) |
| 55 mph (88.51 km/h) | 59.08 mph (95.09 km/h) |
| 60 mph (96.56 km/h) | 64.46 mph (103.73 km/h) |
| 65 mph (104.61 km/h) | 69.83 mph (112.38 km/h) |
| 70 mph (112.65 km/h) | 75.2 mph (121.02 km/h) |
| 75 mph (120.7 km/h) | 80.57 mph (129.66 km/h) |
| 80 mph (128.75 km/h) | 85.94 mph (138.31 km/h) |
| 85 mph (136.79 km/h) | 91.31 mph (146.95 km/h) |
| 90 mph (144.84 km/h) | 96.68 mph (155.6 km/h) |
| 95 mph (152.89 km/h) | 102.05 mph (164.24 km/h) |
| 100 mph (160.93 km/h) | 107.43 mph (172.89 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
