Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/65-15 | 28/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.07 (738.5) | 28.03 (712.08) | -1.04 (-26.42) -3.6% |
| Width inches (mm) | 10.83 (275) | 10.51 (267) | -0.31 (-8) -2.9% |
| Circum. inches (mm) | 91.34 (2320.07) | 88.07 (2237.07) | -3.27 (-83) -3.6% |
| Sidewall Height inches (mm) | 7.04 (178.75) | 6.52 (165.54) | -0.52 (-13.21) -7.4% |
| Revolutions per mile (km) | 693.66 (431.02) | 719.4 (447.01) | 25.74 (15.99) 3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.28 mph (31.04 km/h) |
| 25 mph (40.23 km/h) | 24.11 mph (38.79 km/h) |
| 30 mph (48.28 km/h) | 28.93 mph (46.55 km/h) |
| 35 mph (56.33 km/h) | 33.75 mph (54.31 km/h) |
| 40 mph (64.37 km/h) | 38.57 mph (62.07 km/h) |
| 45 mph (72.42 km/h) | 43.39 mph (69.83 km/h) |
| 50 mph (80.47 km/h) | 48.21 mph (77.59 km/h) |
| 55 mph (88.51 km/h) | 53.03 mph (85.35 km/h) |
| 60 mph (96.56 km/h) | 57.85 mph (93.11 km/h) |
| 65 mph (104.61 km/h) | 62.67 mph (100.87 km/h) |
| 70 mph (112.65 km/h) | 67.5 mph (108.62 km/h) |
| 75 mph (120.7 km/h) | 72.32 mph (116.38 km/h) |
| 80 mph (128.75 km/h) | 77.14 mph (124.14 km/h) |
| 85 mph (136.79 km/h) | 81.96 mph (131.9 km/h) |
| 90 mph (144.84 km/h) | 86.78 mph (139.66 km/h) |
| 95 mph (152.89 km/h) | 91.6 mph (147.42 km/h) |
| 100 mph (160.93 km/h) | 96.42 mph (155.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | 2127 | 2290 | 2392 | 2501 | 2579 | 2664 | 2766 | 2906 | 3046 | 3202 | 3326 | 3552 | 3802 | 3996 | 4121 | 4191 | 4448 | 4807 | 5586 |
Better Fuel Economy Factory Ratios Increased Power
