Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 245/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 24.61 (625.1) | 0.57 (14.6) 2.4% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 75.51 (1917.94) | 77.32 (1963.81) | 1.81 (45.87) 2.4% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 5.31 (134.75) | 0.79 (20) 17.4% |
| Revolutions per mile (km) | 839.1 (521.39) | 819.5 (509.21) | -19.6 (-12.18) -2.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.48 mph (32.96 km/h) |
| 25 mph (40.23 km/h) | 25.6 mph (41.2 km/h) |
| 30 mph (48.28 km/h) | 30.72 mph (49.44 km/h) |
| 35 mph (56.33 km/h) | 35.84 mph (57.67 km/h) |
| 40 mph (64.37 km/h) | 40.96 mph (65.91 km/h) |
| 45 mph (72.42 km/h) | 46.08 mph (74.15 km/h) |
| 50 mph (80.47 km/h) | 51.2 mph (82.39 km/h) |
| 55 mph (88.51 km/h) | 56.32 mph (90.63 km/h) |
| 60 mph (96.56 km/h) | 61.43 mph (98.87 km/h) |
| 65 mph (104.61 km/h) | 66.55 mph (107.11 km/h) |
| 70 mph (112.65 km/h) | 71.67 mph (115.35 km/h) |
| 75 mph (120.7 km/h) | 76.79 mph (123.59 km/h) |
| 80 mph (128.75 km/h) | 81.91 mph (131.83 km/h) |
| 85 mph (136.79 km/h) | 87.03 mph (140.07 km/h) |
| 90 mph (144.84 km/h) | 92.15 mph (148.31 km/h) |
| 95 mph (152.89 km/h) | 97.27 mph (156.54 km/h) |
| 100 mph (160.93 km/h) | 102.39 mph (164.78 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2085 | 2423 | 2609 | 2724 | 2849 | 2937 | 3035 | 3150 | 3310 | 3470 | 3647 | 3789 | 4047 | 4331 | 4553 | 4695 | 4774 | 5067 | 5475 | 6363 |
Better Fuel Economy Factory Ratios Increased Power
