Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/80-15 | 150/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.71 (653) | 24.45 (621) | -1.26 (-32) -4.9% |
| Width inches (mm) | 6.69 (170) | 5.91 (150) | -0.79 (-20) -11.8% |
| Circum. inches (mm) | 80.77 (2051.46) | 76.81 (1950.93) | -3.96 (-100.53) -4.9% |
| Sidewall Height inches (mm) | 5.35 (136) | 4.72 (120) | -0.63 (-16) -11.8% |
| Revolutions per mile (km) | 784.49 (487.46) | 824.91 (512.58) | 40.42 (25.12) 5.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.02 mph (30.61 km/h) |
| 25 mph (40.23 km/h) | 23.77 mph (38.26 km/h) |
| 30 mph (48.28 km/h) | 28.53 mph (45.91 km/h) |
| 35 mph (56.33 km/h) | 33.28 mph (53.57 km/h) |
| 40 mph (64.37 km/h) | 38.04 mph (61.22 km/h) |
| 45 mph (72.42 km/h) | 42.79 mph (68.87 km/h) |
| 50 mph (80.47 km/h) | 47.55 mph (76.52 km/h) |
| 55 mph (88.51 km/h) | 52.3 mph (84.18 km/h) |
| 60 mph (96.56 km/h) | 57.06 mph (91.83 km/h) |
| 65 mph (104.61 km/h) | 61.81 mph (99.48 km/h) |
| 70 mph (112.65 km/h) | 66.57 mph (107.13 km/h) |
| 75 mph (120.7 km/h) | 71.32 mph (114.79 km/h) |
| 80 mph (128.75 km/h) | 76.08 mph (122.44 km/h) |
| 85 mph (136.79 km/h) | 80.83 mph (130.09 km/h) |
| 90 mph (144.84 km/h) | 85.59 mph (137.74 km/h) |
| 95 mph (152.89 km/h) | 90.34 mph (145.4 km/h) |
| 100 mph (160.93 km/h) | 95.1 mph (153.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2099 | 2439 | 2626 | 2742 | 2867 | 2957 | 3055 | 3171 | 3332 | 3493 | 3671 | 3814 | 4073 | 4359 | 4583 | 4726 | 4806 | 5101 | 5512 | 6405 |
Better Fuel Economy Factory Ratios Increased Power
