Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-15 | 165/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.34 (542) | 23.09 (586.6) | 1.76 (44.6) 8.2% |
| Width inches (mm) | 4.53 (115) | 6.5 (165) | 1.97 (50) 43.5% |
| Circum. inches (mm) | 67.04 (1702.74) | 72.55 (1842.86) | 5.52 (140.12) 8.2% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 4.55 (115.5) | 1.38 (35) 43.5% |
| Revolutions per mile (km) | 945.15 (587.29) | 873.29 (542.63) | -71.86 (-44.65) -7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.65 mph (34.84 km/h) |
| 25 mph (40.23 km/h) | 27.06 mph (43.54 km/h) |
| 30 mph (48.28 km/h) | 32.47 mph (52.25 km/h) |
| 35 mph (56.33 km/h) | 37.88 mph (60.96 km/h) |
| 40 mph (64.37 km/h) | 43.29 mph (69.67 km/h) |
| 45 mph (72.42 km/h) | 48.7 mph (78.38 km/h) |
| 50 mph (80.47 km/h) | 54.11 mph (87.09 km/h) |
| 55 mph (88.51 km/h) | 59.53 mph (95.8 km/h) |
| 60 mph (96.56 km/h) | 64.94 mph (104.51 km/h) |
| 65 mph (104.61 km/h) | 70.35 mph (113.22 km/h) |
| 70 mph (112.65 km/h) | 75.76 mph (121.92 km/h) |
| 75 mph (120.7 km/h) | 81.17 mph (130.63 km/h) |
| 80 mph (128.75 km/h) | 86.58 mph (139.34 km/h) |
| 85 mph (136.79 km/h) | 91.99 mph (148.05 km/h) |
| 90 mph (144.84 km/h) | 97.41 mph (156.76 km/h) |
| 95 mph (152.89 km/h) | 102.82 mph (165.47 km/h) |
| 100 mph (160.93 km/h) | 108.23 mph (174.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2222 | 2582 | 2780 | 2903 | 3036 | 3130 | 3234 | 3357 | 3527 | 3698 | 3887 | 4038 | 4312 | 4615 | 4851 | 5003 | 5088 | 5400 | 5835 | 6781 |
Better Fuel Economy Factory Ratios Increased Power
