Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 215/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 29.39 (746.5) | 3.74 (94.9) 14.6% |
| Width inches (mm) | 6.5 (165) | 8.46 (215) | 1.97 (50) 30.3% |
| Circum. inches (mm) | 80.59 (2047.06) | 92.33 (2345.2) | 11.74 (298.14) 14.6% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 7.19 (182.75) | 1.87 (47.45) 35.1% |
| Revolutions per mile (km) | 786.17 (488.5) | 686.23 (426.4) | -99.94 (-62.1) -12.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.91 mph (36.87 km/h) |
| 25 mph (40.23 km/h) | 28.64 mph (46.09 km/h) |
| 30 mph (48.28 km/h) | 34.37 mph (55.31 km/h) |
| 35 mph (56.33 km/h) | 40.1 mph (64.53 km/h) |
| 40 mph (64.37 km/h) | 45.83 mph (73.75 km/h) |
| 45 mph (72.42 km/h) | 51.55 mph (82.97 km/h) |
| 50 mph (80.47 km/h) | 57.28 mph (92.19 km/h) |
| 55 mph (88.51 km/h) | 63.01 mph (101.41 km/h) |
| 60 mph (96.56 km/h) | 68.74 mph (110.62 km/h) |
| 65 mph (104.61 km/h) | 74.47 mph (119.84 km/h) |
| 70 mph (112.65 km/h) | 80.19 mph (129.06 km/h) |
| 75 mph (120.7 km/h) | 85.92 mph (138.28 km/h) |
| 80 mph (128.75 km/h) | 91.65 mph (147.5 km/h) |
| 85 mph (136.79 km/h) | 97.38 mph (156.72 km/h) |
| 90 mph (144.84 km/h) | 103.11 mph (165.94 km/h) |
| 95 mph (152.89 km/h) | 108.84 mph (175.15 km/h) |
| 100 mph (160.93 km/h) | 114.56 mph (184.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1746 | 2029 | 2185 | 2281 | 2385 | 2460 | 2541 | 2638 | 2772 | 2906 | 3054 | 3173 | 3389 | 3626 | 3812 | 3931 | 3998 | 4243 | 4585 | 5328 |
Better Fuel Economy Factory Ratios Increased Power
