Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/65-16 | 230/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.7 (627.4) | 29.58 (751.4) | 4.88 (124) 19.8% |
| Width inches (mm) | 6.69 (170) | 9.06 (230) | 2.36 (60) 35.3% |
| Circum. inches (mm) | 77.6 (1971.04) | 92.94 (2360.59) | 15.34 (389.56) 19.8% |
| Sidewall Height inches (mm) | 4.35 (110.5) | 6.79 (172.5) | 2.44 (62) 56.1% |
| Revolutions per mile (km) | 816.5 (507.35) | 681.75 (423.62) | -134.74 (-83.73) -16.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.95 mph (38.55 km/h) |
| 25 mph (40.23 km/h) | 29.94 mph (48.19 km/h) |
| 30 mph (48.28 km/h) | 35.93 mph (57.82 km/h) |
| 35 mph (56.33 km/h) | 41.92 mph (67.46 km/h) |
| 40 mph (64.37 km/h) | 47.91 mph (77.1 km/h) |
| 45 mph (72.42 km/h) | 53.89 mph (86.73 km/h) |
| 50 mph (80.47 km/h) | 59.88 mph (96.37 km/h) |
| 55 mph (88.51 km/h) | 65.87 mph (106.01 km/h) |
| 60 mph (96.56 km/h) | 71.86 mph (115.65 km/h) |
| 65 mph (104.61 km/h) | 77.85 mph (125.28 km/h) |
| 70 mph (112.65 km/h) | 83.83 mph (134.92 km/h) |
| 75 mph (120.7 km/h) | 89.82 mph (144.56 km/h) |
| 80 mph (128.75 km/h) | 95.81 mph (154.19 km/h) |
| 85 mph (136.79 km/h) | 101.8 mph (163.83 km/h) |
| 90 mph (144.84 km/h) | 107.79 mph (173.47 km/h) |
| 95 mph (152.89 km/h) | 113.78 mph (183.1 km/h) |
| 100 mph (160.93 km/h) | 119.76 mph (192.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1735 | 2015 | 2171 | 2266 | 2370 | 2444 | 2525 | 2621 | 2754 | 2887 | 3034 | 3152 | 3367 | 3603 | 3787 | 3905 | 3972 | 4216 | 4555 | 5293 |
Better Fuel Economy Factory Ratios Increased Power
