Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/55-16 | 240/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.39 (670.4) | 23.67 (601.2) | -2.72 (-69.2) -10.3% |
| Width inches (mm) | 9.45 (240) | 9.45 (240) | 0 (0) 0% |
| Circum. inches (mm) | 82.92 (2106.12) | 74.36 (1888.73) | -8.56 (-217.4) -10.3% |
| Sidewall Height inches (mm) | 5.2 (132) | 2.83 (72) | -2.36 (-60) -45.5% |
| Revolutions per mile (km) | 764.13 (474.81) | 852.08 (529.46) | 87.95 (54.65) 11.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.94 mph (28.86 km/h) |
| 25 mph (40.23 km/h) | 22.42 mph (36.08 km/h) |
| 30 mph (48.28 km/h) | 26.9 mph (43.3 km/h) |
| 35 mph (56.33 km/h) | 31.39 mph (50.51 km/h) |
| 40 mph (64.37 km/h) | 35.87 mph (57.73 km/h) |
| 45 mph (72.42 km/h) | 40.36 mph (64.95 km/h) |
| 50 mph (80.47 km/h) | 44.84 mph (72.16 km/h) |
| 55 mph (88.51 km/h) | 49.32 mph (79.38 km/h) |
| 60 mph (96.56 km/h) | 53.81 mph (86.59 km/h) |
| 65 mph (104.61 km/h) | 58.29 mph (93.81 km/h) |
| 70 mph (112.65 km/h) | 62.77 mph (101.03 km/h) |
| 75 mph (120.7 km/h) | 67.26 mph (108.24 km/h) |
| 80 mph (128.75 km/h) | 71.74 mph (115.46 km/h) |
| 85 mph (136.79 km/h) | 76.23 mph (122.67 km/h) |
| 90 mph (144.84 km/h) | 80.71 mph (129.89 km/h) |
| 95 mph (152.89 km/h) | 85.19 mph (137.11 km/h) |
| 100 mph (160.93 km/h) | 89.68 mph (144.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2168 | 2519 | 2713 | 2833 | 2962 | 3054 | 3156 | 3276 | 3442 | 3608 | 3792 | 3940 | 4208 | 4503 | 4734 | 4881 | 4964 | 5269 | 5693 | 6616 |
Better Fuel Economy Factory Ratios Increased Power
