Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-15 | 275/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.68 (601.5) | 23.66 (601) | -0.02 (-0.5) -0.1% |
| Width inches (mm) | 9.65 (245) | 10.83 (275) | 1.18 (30) 12.2% |
| Circum. inches (mm) | 74.4 (1889.67) | 74.33 (1888.1) | -0.06 (-1.57) -0.1% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 4.33 (110) | -0.01 (-0.25) -0.2% |
| Revolutions per mile (km) | 851.65 (529.19) | 852.36 (529.63) | 0.71 (0.44) 0.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.98 mph (32.16 km/h) |
| 25 mph (40.23 km/h) | 24.98 mph (40.2 km/h) |
| 30 mph (48.28 km/h) | 29.98 mph (48.24 km/h) |
| 35 mph (56.33 km/h) | 34.97 mph (56.28 km/h) |
| 40 mph (64.37 km/h) | 39.97 mph (64.32 km/h) |
| 45 mph (72.42 km/h) | 44.96 mph (72.36 km/h) |
| 50 mph (80.47 km/h) | 49.96 mph (80.4 km/h) |
| 55 mph (88.51 km/h) | 54.95 mph (88.44 km/h) |
| 60 mph (96.56 km/h) | 59.95 mph (96.48 km/h) |
| 65 mph (104.61 km/h) | 64.95 mph (104.52 km/h) |
| 70 mph (112.65 km/h) | 69.94 mph (112.56 km/h) |
| 75 mph (120.7 km/h) | 74.94 mph (120.6 km/h) |
| 80 mph (128.75 km/h) | 79.93 mph (128.64 km/h) |
| 85 mph (136.79 km/h) | 84.93 mph (136.68 km/h) |
| 90 mph (144.84 km/h) | 89.93 mph (144.72 km/h) |
| 95 mph (152.89 km/h) | 94.92 mph (152.76 km/h) |
| 100 mph (160.93 km/h) | 99.92 mph (160.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2169 | 2520 | 2714 | 2834 | 2963 | 3055 | 3157 | 3277 | 3443 | 3609 | 3794 | 3941 | 4209 | 4504 | 4735 | 4883 | 4966 | 5270 | 5695 | 6618 |
Better Fuel Economy Factory Ratios Increased Power
