Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 210/40-18 | 210/25-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 22.13 (562.2) | -2.48 (-63) -10.1% |
| Width inches (mm) | 8.27 (210) | 8.27 (210) | 0 (0) 0% |
| Circum. inches (mm) | 77.33 (1964.12) | 69.54 (1766.2) | -7.79 (-197.92) -10.1% |
| Sidewall Height inches (mm) | 3.31 (84) | 2.07 (52.5) | -1.24 (-31.5) -37.5% |
| Revolutions per mile (km) | 819.37 (509.13) | 911.19 (566.19) | 91.82 (57.05) 11.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.98 mph (28.94 km/h) |
| 25 mph (40.23 km/h) | 22.48 mph (36.18 km/h) |
| 30 mph (48.28 km/h) | 26.98 mph (43.42 km/h) |
| 35 mph (56.33 km/h) | 31.47 mph (50.65 km/h) |
| 40 mph (64.37 km/h) | 35.97 mph (57.89 km/h) |
| 45 mph (72.42 km/h) | 40.47 mph (65.12 km/h) |
| 50 mph (80.47 km/h) | 44.96 mph (72.36 km/h) |
| 55 mph (88.51 km/h) | 49.46 mph (79.59 km/h) |
| 60 mph (96.56 km/h) | 53.95 mph (86.83 km/h) |
| 65 mph (104.61 km/h) | 58.45 mph (94.07 km/h) |
| 70 mph (112.65 km/h) | 62.95 mph (101.3 km/h) |
| 75 mph (120.7 km/h) | 67.44 mph (108.54 km/h) |
| 80 mph (128.75 km/h) | 71.94 mph (115.77 km/h) |
| 85 mph (136.79 km/h) | 76.43 mph (123.01 km/h) |
| 90 mph (144.84 km/h) | 80.93 mph (130.25 km/h) |
| 95 mph (152.89 km/h) | 85.43 mph (137.48 km/h) |
| 100 mph (160.93 km/h) | 89.92 mph (144.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2319 | 2694 | 2901 | 3029 | 3167 | 3266 | 3375 | 3503 | 3680 | 3858 | 4055 | 4213 | 4499 | 4815 | 5062 | 5220 | 5309 | 5634 | 6088 | 7075 |
Better Fuel Economy Factory Ratios Increased Power
