Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-15 | 90/90-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.61 (549) | 22.38 (568.4) | 0.76 (19.4) 3.5% |
| Width inches (mm) | 4.72 (120) | 3.54 (90) | -1.18 (-30) -25% |
| Circum. inches (mm) | 67.9 (1724.73) | 70.3 (1785.68) | 2.4 (60.95) 3.5% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.19 (81) | -0.12 (-3) -3.6% |
| Revolutions per mile (km) | 933.1 (579.8) | 901.25 (560.01) | -31.85 (-19.79) -3.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.71 mph (33.32 km/h) |
| 25 mph (40.23 km/h) | 25.88 mph (41.66 km/h) |
| 30 mph (48.28 km/h) | 31.06 mph (49.99 km/h) |
| 35 mph (56.33 km/h) | 36.24 mph (58.32 km/h) |
| 40 mph (64.37 km/h) | 41.41 mph (66.65 km/h) |
| 45 mph (72.42 km/h) | 46.59 mph (74.98 km/h) |
| 50 mph (80.47 km/h) | 51.77 mph (83.31 km/h) |
| 55 mph (88.51 km/h) | 56.94 mph (91.64 km/h) |
| 60 mph (96.56 km/h) | 62.12 mph (99.97 km/h) |
| 65 mph (104.61 km/h) | 67.3 mph (108.3 km/h) |
| 70 mph (112.65 km/h) | 72.47 mph (116.64 km/h) |
| 75 mph (120.7 km/h) | 77.65 mph (124.97 km/h) |
| 80 mph (128.75 km/h) | 82.83 mph (133.3 km/h) |
| 85 mph (136.79 km/h) | 88 mph (141.63 km/h) |
| 90 mph (144.84 km/h) | 93.18 mph (149.96 km/h) |
| 95 mph (152.89 km/h) | 98.36 mph (158.29 km/h) |
| 100 mph (160.93 km/h) | 103.53 mph (166.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2294 | 2664 | 2869 | 2996 | 3133 | 3230 | 3338 | 3465 | 3640 | 3816 | 4011 | 4167 | 4450 | 4763 | 5007 | 5163 | 5251 | 5573 | 6022 | 6998 |
Better Fuel Economy Factory Ratios Increased Power
