Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 160/60-18 | 240/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.56 (649.2) | 31.23 (793.2) | 5.67 (144) 22.2% |
| Width inches (mm) | 6.3 (160) | 9.45 (240) | 3.15 (80) 50% |
| Circum. inches (mm) | 80.3 (2039.52) | 98.11 (2491.91) | 17.81 (452.39) 22.2% |
| Sidewall Height inches (mm) | 3.78 (96) | 6.61 (168) | 2.83 (72) 75% |
| Revolutions per mile (km) | 789.08 (490.31) | 645.83 (401.3) | -143.25 (-89.01) -18.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.44 mph (39.33 km/h) |
| 25 mph (40.23 km/h) | 30.55 mph (49.16 km/h) |
| 30 mph (48.28 km/h) | 36.65 mph (58.99 km/h) |
| 35 mph (56.33 km/h) | 42.76 mph (68.82 km/h) |
| 40 mph (64.37 km/h) | 48.87 mph (78.65 km/h) |
| 45 mph (72.42 km/h) | 54.98 mph (88.48 km/h) |
| 50 mph (80.47 km/h) | 61.09 mph (98.32 km/h) |
| 55 mph (88.51 km/h) | 67.2 mph (108.15 km/h) |
| 60 mph (96.56 km/h) | 73.31 mph (117.98 km/h) |
| 65 mph (104.61 km/h) | 79.42 mph (127.81 km/h) |
| 70 mph (112.65 km/h) | 85.53 mph (137.64 km/h) |
| 75 mph (120.7 km/h) | 91.64 mph (147.47 km/h) |
| 80 mph (128.75 km/h) | 97.74 mph (157.31 km/h) |
| 85 mph (136.79 km/h) | 103.85 mph (167.14 km/h) |
| 90 mph (144.84 km/h) | 109.96 mph (176.97 km/h) |
| 95 mph (152.89 km/h) | 116.07 mph (186.8 km/h) |
| 100 mph (160.93 km/h) | 122.18 mph (196.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1644 | 1909 | 2056 | 2147 | 2245 | 2315 | 2392 | 2483 | 2609 | 2735 | 2874 | 2986 | 3189 | 3413 | 3588 | 3700 | 3763 | 3993 | 4315 | 5014 |
Better Fuel Economy Factory Ratios Increased Power
