Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-15 | 165/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.7 (703.5) | 26.04 (661.5) | -1.65 (-42) -6% |
| Width inches (mm) | 8.46 (215) | 6.5 (165) | -1.97 (-50) -23.3% |
| Circum. inches (mm) | 87.01 (2210.11) | 81.82 (2078.16) | -5.19 (-131.95) -6% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 5.52 (140.25) | -0.83 (-21) -13% |
| Revolutions per mile (km) | 728.17 (452.47) | 774.41 (481.19) | 46.23 (28.73) 6.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.81 mph (30.27 km/h) |
| 25 mph (40.23 km/h) | 23.51 mph (37.83 km/h) |
| 30 mph (48.28 km/h) | 28.21 mph (45.4 km/h) |
| 35 mph (56.33 km/h) | 32.91 mph (52.96 km/h) |
| 40 mph (64.37 km/h) | 37.61 mph (60.53 km/h) |
| 45 mph (72.42 km/h) | 42.31 mph (68.1 km/h) |
| 50 mph (80.47 km/h) | 47.01 mph (75.66 km/h) |
| 55 mph (88.51 km/h) | 51.72 mph (83.23 km/h) |
| 60 mph (96.56 km/h) | 56.42 mph (90.8 km/h) |
| 65 mph (104.61 km/h) | 61.12 mph (98.36 km/h) |
| 70 mph (112.65 km/h) | 65.82 mph (105.93 km/h) |
| 75 mph (120.7 km/h) | 70.52 mph (113.49 km/h) |
| 80 mph (128.75 km/h) | 75.22 mph (121.06 km/h) |
| 85 mph (136.79 km/h) | 79.93 mph (128.63 km/h) |
| 90 mph (144.84 km/h) | 84.63 mph (136.19 km/h) |
| 95 mph (152.89 km/h) | 89.33 mph (143.76 km/h) |
| 100 mph (160.93 km/h) | 94.03 mph (151.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1971 | 2289 | 2465 | 2575 | 2692 | 2776 | 2868 | 2977 | 3128 | 3279 | 3447 | 3581 | 3824 | 4092 | 4302 | 4436 | 4512 | 4788 | 5174 | 6013 |
Better Fuel Economy Factory Ratios Increased Power
