Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 38/15.5-20 | 335/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.99 (965.04) | 35.83 (910) | -2.17 (-55.04) -5.7% |
| Width inches (mm) | 15.51 (394) | 13.19 (335) | -2.32 (-59) -15% |
| Circum. inches (mm) | 119.36 (3031.76) | 112.55 (2858.85) | -6.81 (-172.91) -5.7% |
| Sidewall Height inches (mm) | 9 (228.52) | 7.91 (201) | -1.08 (-27.52) -12% |
| Revolutions per mile (km) | 530.83 (329.84) | 562.93 (349.79) | 32.11 (19.95) 6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.86 mph (30.35 km/h) |
| 25 mph (40.23 km/h) | 23.57 mph (37.94 km/h) |
| 30 mph (48.28 km/h) | 28.29 mph (45.53 km/h) |
| 35 mph (56.33 km/h) | 33 mph (53.11 km/h) |
| 40 mph (64.37 km/h) | 37.72 mph (60.7 km/h) |
| 45 mph (72.42 km/h) | 42.43 mph (68.29 km/h) |
| 50 mph (80.47 km/h) | 47.15 mph (75.88 km/h) |
| 55 mph (88.51 km/h) | 51.86 mph (83.47 km/h) |
| 60 mph (96.56 km/h) | 56.58 mph (91.05 km/h) |
| 65 mph (104.61 km/h) | 61.29 mph (98.64 km/h) |
| 70 mph (112.65 km/h) | 66.01 mph (106.23 km/h) |
| 75 mph (120.7 km/h) | 70.72 mph (113.82 km/h) |
| 80 mph (128.75 km/h) | 75.44 mph (121.4 km/h) |
| 85 mph (136.79 km/h) | 80.15 mph (128.99 km/h) |
| 90 mph (144.84 km/h) | 84.87 mph (136.58 km/h) |
| 95 mph (152.89 km/h) | 89.58 mph (144.17 km/h) |
| 100 mph (160.93 km/h) | 94.3 mph (151.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1433 | 1664 | 1792 | 1871 | 1957 | 2018 | 2085 | 2164 | 2274 | 2384 | 2505 | 2603 | 2780 | 2975 | 3127 | 3225 | 3280 | 3481 | 3761 | 4371 |
Better Fuel Economy Factory Ratios Increased Power
