Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 215/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 23.85 (605.8) | 2.2 (56) 10.2% |
| Width inches (mm) | 6.89 (175) | 8.46 (215) | 1.57 (40) 22.9% |
| Circum. inches (mm) | 68 (1727.25) | 74.93 (1903.18) | 6.93 (175.93) 10.2% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 5.93 (150.5) | 1.1 (28) 22.9% |
| Revolutions per mile (km) | 931.74 (578.95) | 845.61 (525.44) | -86.13 (-53.52) -9.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.04 mph (35.47 km/h) |
| 25 mph (40.23 km/h) | 27.55 mph (44.33 km/h) |
| 30 mph (48.28 km/h) | 33.06 mph (53.2 km/h) |
| 35 mph (56.33 km/h) | 38.56 mph (62.06 km/h) |
| 40 mph (64.37 km/h) | 44.07 mph (70.93 km/h) |
| 45 mph (72.42 km/h) | 49.58 mph (79.8 km/h) |
| 50 mph (80.47 km/h) | 55.09 mph (88.66 km/h) |
| 55 mph (88.51 km/h) | 60.6 mph (97.53 km/h) |
| 60 mph (96.56 km/h) | 66.11 mph (106.4 km/h) |
| 65 mph (104.61 km/h) | 71.62 mph (115.26 km/h) |
| 70 mph (112.65 km/h) | 77.13 mph (124.13 km/h) |
| 75 mph (120.7 km/h) | 82.64 mph (133 km/h) |
| 80 mph (128.75 km/h) | 88.15 mph (141.86 km/h) |
| 85 mph (136.79 km/h) | 93.66 mph (150.73 km/h) |
| 90 mph (144.84 km/h) | 99.17 mph (159.59 km/h) |
| 95 mph (152.89 km/h) | 104.68 mph (168.46 km/h) |
| 100 mph (160.93 km/h) | 110.19 mph (177.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2152 | 2500 | 2692 | 2811 | 2939 | 3031 | 3132 | 3251 | 3416 | 3580 | 3764 | 3910 | 4176 | 4469 | 4698 | 4844 | 4927 | 5229 | 5650 | 6566 |
Better Fuel Economy Factory Ratios Increased Power
