Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/40-16 | 165/25-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.4) | 19.25 (488.9) | -1.95 (-49.5) -9.2% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 66.59 (1691.43) | 60.47 (1535.92) | -6.12 (-155.51) -9.2% |
| Sidewall Height inches (mm) | 2.6 (66) | 1.62 (41.25) | -0.97 (-24.75) -37.5% |
| Revolutions per mile (km) | 951.47 (591.21) | 1047.8 (651.07) | 96.33 (59.86) 10.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.16 mph (29.23 km/h) |
| 25 mph (40.23 km/h) | 22.7 mph (36.53 km/h) |
| 30 mph (48.28 km/h) | 27.24 mph (43.84 km/h) |
| 35 mph (56.33 km/h) | 31.78 mph (51.15 km/h) |
| 40 mph (64.37 km/h) | 36.32 mph (58.46 km/h) |
| 45 mph (72.42 km/h) | 40.86 mph (65.76 km/h) |
| 50 mph (80.47 km/h) | 45.4 mph (73.07 km/h) |
| 55 mph (88.51 km/h) | 49.94 mph (80.38 km/h) |
| 60 mph (96.56 km/h) | 54.48 mph (87.68 km/h) |
| 65 mph (104.61 km/h) | 59.02 mph (94.99 km/h) |
| 70 mph (112.65 km/h) | 63.56 mph (102.3 km/h) |
| 75 mph (120.7 km/h) | 68.1 mph (109.6 km/h) |
| 80 mph (128.75 km/h) | 72.64 mph (116.91 km/h) |
| 85 mph (136.79 km/h) | 77.19 mph (124.22 km/h) |
| 90 mph (144.84 km/h) | 81.73 mph (131.52 km/h) |
| 95 mph (152.89 km/h) | 86.27 mph (138.83 km/h) |
| 100 mph (160.93 km/h) | 90.81 mph (146.14 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
