Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-10 | 279/55-10 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.09 (434) | 22.08 (560.9) | 5 (126.9) 29.2% |
| Width inches (mm) | 8.86 (225) | 10.98 (279) | 2.13 (54) 24% |
| Circum. inches (mm) | 53.68 (1363.45) | 69.37 (1762.12) | 15.7 (398.67) 29.2% |
| Sidewall Height inches (mm) | 3.54 (90) | 6.04 (153.45) | 2.5 (63.45) 70.5% |
| Revolutions per mile (km) | 1180.35 (733.43) | 913.3 (567.5) | -267.05 (-165.93) -22.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.85 mph (41.6 km/h) |
| 25 mph (40.23 km/h) | 32.31 mph (52 km/h) |
| 30 mph (48.28 km/h) | 38.77 mph (62.4 km/h) |
| 35 mph (56.33 km/h) | 45.23 mph (72.8 km/h) |
| 40 mph (64.37 km/h) | 51.7 mph (83.2 km/h) |
| 45 mph (72.42 km/h) | 58.16 mph (93.6 km/h) |
| 50 mph (80.47 km/h) | 64.62 mph (104 km/h) |
| 55 mph (88.51 km/h) | 71.08 mph (114.4 km/h) |
| 60 mph (96.56 km/h) | 77.54 mph (124.79 km/h) |
| 65 mph (104.61 km/h) | 84.01 mph (135.19 km/h) |
| 70 mph (112.65 km/h) | 90.47 mph (145.59 km/h) |
| 75 mph (120.7 km/h) | 96.93 mph (155.99 km/h) |
| 80 mph (128.75 km/h) | 103.39 mph (166.39 km/h) |
| 85 mph (136.79 km/h) | 109.85 mph (176.79 km/h) |
| 90 mph (144.84 km/h) | 116.32 mph (187.19 km/h) |
| 95 mph (152.89 km/h) | 122.78 mph (197.59 km/h) |
| 100 mph (160.93 km/h) | 129.24 mph (207.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2324 | 2700 | 2908 | 3036 | 3175 | 3274 | 3382 | 3511 | 3689 | 3867 | 4065 | 4223 | 4510 | 4826 | 5074 | 5232 | 5321 | 5647 | 6102 | 7091 |
Better Fuel Economy Factory Ratios Increased Power
