Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/9-15 | 275/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.76) | 26.91 (683.5) | -1.07 (-27.26) -3.8% |
| Width inches (mm) | 9.02 (229) | 10.83 (275) | 1.81 (46) 20.1% |
| Circum. inches (mm) | 87.91 (2232.92) | 84.54 (2147.28) | -3.37 (-85.64) -3.8% |
| Sidewall Height inches (mm) | 6.49 (164.88) | 5.95 (151.25) | -0.54 (-13.63) -8.3% |
| Revolutions per mile (km) | 720.74 (447.84) | 749.48 (465.7) | 28.75 (17.86) 4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.23 mph (30.95 km/h) |
| 25 mph (40.23 km/h) | 24.04 mph (38.69 km/h) |
| 30 mph (48.28 km/h) | 28.85 mph (46.43 km/h) |
| 35 mph (56.33 km/h) | 33.66 mph (54.17 km/h) |
| 40 mph (64.37 km/h) | 38.47 mph (61.9 km/h) |
| 45 mph (72.42 km/h) | 43.27 mph (69.64 km/h) |
| 50 mph (80.47 km/h) | 48.08 mph (77.38 km/h) |
| 55 mph (88.51 km/h) | 52.89 mph (85.12 km/h) |
| 60 mph (96.56 km/h) | 57.7 mph (92.86 km/h) |
| 65 mph (104.61 km/h) | 62.51 mph (100.6 km/h) |
| 70 mph (112.65 km/h) | 67.32 mph (108.33 km/h) |
| 75 mph (120.7 km/h) | 72.12 mph (116.07 km/h) |
| 80 mph (128.75 km/h) | 76.93 mph (123.81 km/h) |
| 85 mph (136.79 km/h) | 81.74 mph (131.55 km/h) |
| 90 mph (144.84 km/h) | 86.55 mph (139.29 km/h) |
| 95 mph (152.89 km/h) | 91.36 mph (147.02 km/h) |
| 100 mph (160.93 km/h) | 96.16 mph (154.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1907 | 2216 | 2386 | 2492 | 2605 | 2686 | 2776 | 2881 | 3027 | 3173 | 3336 | 3466 | 3701 | 3961 | 4164 | 4293 | 4366 | 4634 | 5008 | 5819 |
Better Fuel Economy Factory Ratios Increased Power
