Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/40-10 | 255/45-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.03 (458) | 23.04 (585.1) | 5 (127.1) 27.8% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 56.65 (1438.85) | 72.37 (1838.15) | 15.72 (399.3) 27.8% |
| Sidewall Height inches (mm) | 4.02 (102) | 4.52 (114.75) | 0.5 (12.75) 12.5% |
| Revolutions per mile (km) | 1118.49 (695) | 875.53 (544.03) | -242.97 (-150.97) -21.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.55 mph (41.12 km/h) |
| 25 mph (40.23 km/h) | 31.94 mph (51.4 km/h) |
| 30 mph (48.28 km/h) | 38.33 mph (61.68 km/h) |
| 35 mph (56.33 km/h) | 44.71 mph (71.96 km/h) |
| 40 mph (64.37 km/h) | 51.1 mph (82.24 km/h) |
| 45 mph (72.42 km/h) | 57.49 mph (92.52 km/h) |
| 50 mph (80.47 km/h) | 63.88 mph (102.8 km/h) |
| 55 mph (88.51 km/h) | 70.26 mph (113.08 km/h) |
| 60 mph (96.56 km/h) | 76.65 mph (123.36 km/h) |
| 65 mph (104.61 km/h) | 83.04 mph (133.64 km/h) |
| 70 mph (112.65 km/h) | 89.43 mph (143.92 km/h) |
| 75 mph (120.7 km/h) | 95.81 mph (154.2 km/h) |
| 80 mph (128.75 km/h) | 102.2 mph (164.48 km/h) |
| 85 mph (136.79 km/h) | 108.59 mph (174.76 km/h) |
| 90 mph (144.84 km/h) | 114.98 mph (185.04 km/h) |
| 95 mph (152.89 km/h) | 121.36 mph (195.32 km/h) |
| 100 mph (160.93 km/h) | 127.75 mph (205.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | 2588 | 2787 | 2911 | 3043 | 3138 | 3243 | 3366 | 3536 | 3707 | 3897 | 4048 | 4323 | 4627 | 4864 | 5015 | 5101 | 5414 | 5850 | 6798 |
Better Fuel Economy Factory Ratios Increased Power
