Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-10 | 215/40-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.09 (434) | 18.77 (476.8) | 1.69 (42.8) 9.9% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 53.68 (1363.45) | 58.97 (1497.91) | 5.29 (134.46) 9.9% |
| Sidewall Height inches (mm) | 3.54 (90) | 3.39 (86) | -0.16 (-4) -4.4% |
| Revolutions per mile (km) | 1180.35 (733.43) | 1074.39 (667.59) | -105.95 (-65.84) -9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.97 mph (35.36 km/h) |
| 25 mph (40.23 km/h) | 27.47 mph (44.2 km/h) |
| 30 mph (48.28 km/h) | 32.96 mph (53.04 km/h) |
| 35 mph (56.33 km/h) | 38.45 mph (61.88 km/h) |
| 40 mph (64.37 km/h) | 43.94 mph (70.72 km/h) |
| 45 mph (72.42 km/h) | 49.44 mph (79.56 km/h) |
| 50 mph (80.47 km/h) | 54.93 mph (88.4 km/h) |
| 55 mph (88.51 km/h) | 60.42 mph (97.24 km/h) |
| 60 mph (96.56 km/h) | 65.92 mph (106.08 km/h) |
| 65 mph (104.61 km/h) | 71.41 mph (114.92 km/h) |
| 70 mph (112.65 km/h) | 76.9 mph (123.76 km/h) |
| 75 mph (120.7 km/h) | 82.4 mph (132.6 km/h) |
| 80 mph (128.75 km/h) | 87.89 mph (141.44 km/h) |
| 85 mph (136.79 km/h) | 93.38 mph (150.28 km/h) |
| 90 mph (144.84 km/h) | 98.88 mph (159.13 km/h) |
| 95 mph (152.89 km/h) | 104.37 mph (167.97 km/h) |
| 100 mph (160.93 km/h) | 109.86 mph (176.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
