Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 270/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 24.57 (624) | 0.53 (13.5) 2.2% |
| Width inches (mm) | 10.04 (255) | 10.63 (270) | 0.59 (15) 5.9% |
| Circum. inches (mm) | 75.51 (1917.94) | 77.18 (1960.35) | 1.67 (42.41) 2.2% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.78 (121.5) | 0.27 (6.75) 5.9% |
| Revolutions per mile (km) | 839.1 (521.39) | 820.95 (510.11) | -18.15 (-11.28) -2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.44 mph (32.9 km/h) |
| 25 mph (40.23 km/h) | 25.55 mph (41.12 km/h) |
| 30 mph (48.28 km/h) | 30.66 mph (49.35 km/h) |
| 35 mph (56.33 km/h) | 35.77 mph (57.57 km/h) |
| 40 mph (64.37 km/h) | 40.88 mph (65.8 km/h) |
| 45 mph (72.42 km/h) | 46 mph (74.02 km/h) |
| 50 mph (80.47 km/h) | 51.11 mph (82.25 km/h) |
| 55 mph (88.51 km/h) | 56.22 mph (90.47 km/h) |
| 60 mph (96.56 km/h) | 61.33 mph (98.7 km/h) |
| 65 mph (104.61 km/h) | 66.44 mph (106.92 km/h) |
| 70 mph (112.65 km/h) | 71.55 mph (115.15 km/h) |
| 75 mph (120.7 km/h) | 76.66 mph (123.37 km/h) |
| 80 mph (128.75 km/h) | 81.77 mph (131.59 km/h) |
| 85 mph (136.79 km/h) | 86.88 mph (139.82 km/h) |
| 90 mph (144.84 km/h) | 91.99 mph (148.04 km/h) |
| 95 mph (152.89 km/h) | 97.1 mph (156.27 km/h) |
| 100 mph (160.93 km/h) | 102.21 mph (164.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2089 | 2427 | 2614 | 2729 | 2854 | 2943 | 3040 | 3156 | 3316 | 3476 | 3654 | 3796 | 4054 | 4338 | 4561 | 4703 | 4783 | 5076 | 5485 | 6374 |
Better Fuel Economy Factory Ratios Increased Power
