Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/60-12 | 205/60-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.67 (448.8) | 21.69 (550.8) | 4.02 (102) 22.7% |
| Width inches (mm) | 4.72 (120) | 8.07 (205) | 3.35 (85) 70.8% |
| Circum. inches (mm) | 55.51 (1409.95) | 68.13 (1730.39) | 12.62 (320.44) 22.7% |
| Sidewall Height inches (mm) | 2.83 (72) | 4.84 (123) | 2.01 (51) 70.8% |
| Revolutions per mile (km) | 1141.42 (709.25) | 930.05 (577.9) | -211.37 (-131.34) -18.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.55 mph (39.5 km/h) |
| 25 mph (40.23 km/h) | 30.68 mph (49.38 km/h) |
| 30 mph (48.28 km/h) | 36.82 mph (59.25 km/h) |
| 35 mph (56.33 km/h) | 42.95 mph (69.13 km/h) |
| 40 mph (64.37 km/h) | 49.09 mph (79 km/h) |
| 45 mph (72.42 km/h) | 55.23 mph (88.88 km/h) |
| 50 mph (80.47 km/h) | 61.36 mph (98.76 km/h) |
| 55 mph (88.51 km/h) | 67.5 mph (108.63 km/h) |
| 60 mph (96.56 km/h) | 73.64 mph (118.51 km/h) |
| 65 mph (104.61 km/h) | 79.77 mph (128.38 km/h) |
| 70 mph (112.65 km/h) | 85.91 mph (138.26 km/h) |
| 75 mph (120.7 km/h) | 92.05 mph (148.13 km/h) |
| 80 mph (128.75 km/h) | 98.18 mph (158.01 km/h) |
| 85 mph (136.79 km/h) | 104.32 mph (167.88 km/h) |
| 90 mph (144.84 km/h) | 110.45 mph (177.76 km/h) |
| 95 mph (152.89 km/h) | 116.59 mph (187.64 km/h) |
| 100 mph (160.93 km/h) | 122.73 mph (197.51 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
