Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 165/25-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 21.25 (539.7) | -4.41 (-111.9) -17.2% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 80.59 (2047.06) | 66.75 (1695.52) | -13.84 (-351.54) -17.2% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 1.62 (41.25) | -3.7 (-94.05) -69.5% |
| Revolutions per mile (km) | 786.17 (488.5) | 949.18 (589.79) | 163 (101.29) 20.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.57 mph (26.66 km/h) |
| 25 mph (40.23 km/h) | 20.71 mph (33.32 km/h) |
| 30 mph (48.28 km/h) | 24.85 mph (39.99 km/h) |
| 35 mph (56.33 km/h) | 28.99 mph (46.65 km/h) |
| 40 mph (64.37 km/h) | 33.13 mph (53.32 km/h) |
| 45 mph (72.42 km/h) | 37.27 mph (59.98 km/h) |
| 50 mph (80.47 km/h) | 41.41 mph (66.65 km/h) |
| 55 mph (88.51 km/h) | 45.55 mph (73.31 km/h) |
| 60 mph (96.56 km/h) | 49.7 mph (79.98 km/h) |
| 65 mph (104.61 km/h) | 53.84 mph (86.64 km/h) |
| 70 mph (112.65 km/h) | 57.98 mph (93.31 km/h) |
| 75 mph (120.7 km/h) | 62.12 mph (99.97 km/h) |
| 80 mph (128.75 km/h) | 66.26 mph (106.64 km/h) |
| 85 mph (136.79 km/h) | 70.4 mph (113.3 km/h) |
| 90 mph (144.84 km/h) | 74.54 mph (119.97 km/h) |
| 95 mph (152.89 km/h) | 78.69 mph (126.63 km/h) |
| 100 mph (160.93 km/h) | 82.83 mph (133.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
