Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 275/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 29.07 (738.5) | -0.43 (-10.96) -1.5% |
| Width inches (mm) | 10.51 (267) | 10.83 (275) | 0.31 (8) 3% |
| Circum. inches (mm) | 92.7 (2354.5) | 91.34 (2320.07) | -1.36 (-34.43) -1.5% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 7.04 (178.75) | -0.22 (-5.48) -3% |
| Revolutions per mile (km) | 683.52 (424.72) | 693.66 (431.02) | 10.14 (6.3) 1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.71 mph (31.72 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.65 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.57 km/h) |
| 35 mph (56.33 km/h) | 34.49 mph (55.5 km/h) |
| 40 mph (64.37 km/h) | 39.42 mph (63.43 km/h) |
| 45 mph (72.42 km/h) | 44.34 mph (71.36 km/h) |
| 50 mph (80.47 km/h) | 49.27 mph (79.29 km/h) |
| 55 mph (88.51 km/h) | 54.2 mph (87.22 km/h) |
| 60 mph (96.56 km/h) | 59.12 mph (95.15 km/h) |
| 65 mph (104.61 km/h) | 64.05 mph (103.08 km/h) |
| 70 mph (112.65 km/h) | 68.98 mph (111.01 km/h) |
| 75 mph (120.7 km/h) | 73.9 mph (118.94 km/h) |
| 80 mph (128.75 km/h) | 78.83 mph (126.86 km/h) |
| 85 mph (136.79 km/h) | 83.76 mph (134.79 km/h) |
| 90 mph (144.84 km/h) | 88.68 mph (142.72 km/h) |
| 95 mph (152.89 km/h) | 93.61 mph (150.65 km/h) |
| 100 mph (160.93 km/h) | 98.54 mph (158.58 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
