Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 210/40-18 | 195/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 24.14 (613.2) | -0.47 (-12) -1.9% |
| Width inches (mm) | 8.27 (210) | 7.68 (195) | -0.59 (-15) -7.1% |
| Circum. inches (mm) | 77.33 (1964.12) | 75.84 (1926.42) | -1.48 (-37.7) -1.9% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.07 (78) | -0.24 (-6) -7.1% |
| Revolutions per mile (km) | 819.37 (509.13) | 835.4 (519.1) | 16.03 (9.96) 2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.62 mph (31.57 km/h) |
| 25 mph (40.23 km/h) | 24.52 mph (39.46 km/h) |
| 30 mph (48.28 km/h) | 29.42 mph (47.35 km/h) |
| 35 mph (56.33 km/h) | 34.33 mph (55.25 km/h) |
| 40 mph (64.37 km/h) | 39.23 mph (63.14 km/h) |
| 45 mph (72.42 km/h) | 44.14 mph (71.03 km/h) |
| 50 mph (80.47 km/h) | 49.04 mph (78.92 km/h) |
| 55 mph (88.51 km/h) | 53.94 mph (86.82 km/h) |
| 60 mph (96.56 km/h) | 58.85 mph (94.71 km/h) |
| 65 mph (104.61 km/h) | 63.75 mph (102.6 km/h) |
| 70 mph (112.65 km/h) | 68.66 mph (110.49 km/h) |
| 75 mph (120.7 km/h) | 73.56 mph (118.38 km/h) |
| 80 mph (128.75 km/h) | 78.46 mph (126.28 km/h) |
| 85 mph (136.79 km/h) | 83.37 mph (134.17 km/h) |
| 90 mph (144.84 km/h) | 88.27 mph (142.06 km/h) |
| 95 mph (152.89 km/h) | 93.18 mph (149.95 km/h) |
| 100 mph (160.93 km/h) | 98.08 mph (157.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2126 | 2470 | 2660 | 2777 | 2904 | 2994 | 3094 | 3212 | 3374 | 3537 | 3718 | 3863 | 4125 | 4415 | 4641 | 4786 | 4867 | 5166 | 5582 | 6486 |
Better Fuel Economy Factory Ratios Increased Power
