Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 270/50-10 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 20.63 (524) | -1.02 (-25.8) -4.7% |
| Width inches (mm) | 6.89 (175) | 10.63 (270) | 3.74 (95) 54.3% |
| Circum. inches (mm) | 68 (1727.25) | 64.81 (1646.19) | -3.19 (-81.05) -4.7% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 5.31 (135) | 0.49 (12.5) 10.2% |
| Revolutions per mile (km) | 931.74 (578.95) | 977.61 (607.46) | 45.88 (28.51) 4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.06 mph (30.68 km/h) |
| 25 mph (40.23 km/h) | 23.83 mph (38.35 km/h) |
| 30 mph (48.28 km/h) | 28.59 mph (46.01 km/h) |
| 35 mph (56.33 km/h) | 33.36 mph (53.68 km/h) |
| 40 mph (64.37 km/h) | 38.12 mph (61.35 km/h) |
| 45 mph (72.42 km/h) | 42.89 mph (69.02 km/h) |
| 50 mph (80.47 km/h) | 47.65 mph (76.69 km/h) |
| 55 mph (88.51 km/h) | 52.42 mph (84.36 km/h) |
| 60 mph (96.56 km/h) | 57.18 mph (92.03 km/h) |
| 65 mph (104.61 km/h) | 61.95 mph (99.7 km/h) |
| 70 mph (112.65 km/h) | 66.72 mph (107.37 km/h) |
| 75 mph (120.7 km/h) | 71.48 mph (115.04 km/h) |
| 80 mph (128.75 km/h) | 76.25 mph (122.71 km/h) |
| 85 mph (136.79 km/h) | 81.01 mph (130.38 km/h) |
| 90 mph (144.84 km/h) | 85.78 mph (138.04 km/h) |
| 95 mph (152.89 km/h) | 90.54 mph (145.71 km/h) |
| 100 mph (160.93 km/h) | 95.31 mph (153.38 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
