Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 275/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 29.07 (738.5) | 5.04 (128) 21% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 75.51 (1917.94) | 91.34 (2320.07) | 15.83 (402.12) 21% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 7.04 (178.75) | 2.52 (64) 55.8% |
| Revolutions per mile (km) | 839.1 (521.39) | 693.66 (431.02) | -145.44 (-90.37) -17.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.19 mph (38.94 km/h) |
| 25 mph (40.23 km/h) | 30.24 mph (48.67 km/h) |
| 30 mph (48.28 km/h) | 36.29 mph (58.4 km/h) |
| 35 mph (56.33 km/h) | 42.34 mph (68.14 km/h) |
| 40 mph (64.37 km/h) | 48.39 mph (77.87 km/h) |
| 45 mph (72.42 km/h) | 54.43 mph (87.6 km/h) |
| 50 mph (80.47 km/h) | 60.48 mph (97.34 km/h) |
| 55 mph (88.51 km/h) | 66.53 mph (107.07 km/h) |
| 60 mph (96.56 km/h) | 72.58 mph (116.81 km/h) |
| 65 mph (104.61 km/h) | 78.63 mph (126.54 km/h) |
| 70 mph (112.65 km/h) | 84.68 mph (136.27 km/h) |
| 75 mph (120.7 km/h) | 90.72 mph (146.01 km/h) |
| 80 mph (128.75 km/h) | 96.77 mph (155.74 km/h) |
| 85 mph (136.79 km/h) | 102.82 mph (165.48 km/h) |
| 90 mph (144.84 km/h) | 108.87 mph (175.21 km/h) |
| 95 mph (152.89 km/h) | 114.92 mph (184.94 km/h) |
| 100 mph (160.93 km/h) | 120.97 mph (194.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1765 | 2051 | 2208 | 2306 | 2411 | 2486 | 2569 | 2667 | 2802 | 2937 | 3087 | 3207 | 3425 | 3666 | 3853 | 3974 | 4041 | 4289 | 4635 | 5386 |
Better Fuel Economy Factory Ratios Increased Power
