Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/80-15 | 170/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.45 (621) | 25.71 (653) | 1.26 (32) 5.2% |
| Width inches (mm) | 5.91 (150) | 6.69 (170) | 0.79 (20) 13.3% |
| Circum. inches (mm) | 76.81 (1950.93) | 80.77 (2051.46) | 3.96 (100.53) 5.2% |
| Sidewall Height inches (mm) | 4.72 (120) | 5.35 (136) | 0.63 (16) 13.3% |
| Revolutions per mile (km) | 824.91 (512.58) | 784.49 (487.46) | -40.42 (-25.12) -4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.03 mph (33.85 km/h) |
| 25 mph (40.23 km/h) | 26.29 mph (42.31 km/h) |
| 30 mph (48.28 km/h) | 31.55 mph (50.77 km/h) |
| 35 mph (56.33 km/h) | 36.8 mph (59.23 km/h) |
| 40 mph (64.37 km/h) | 42.06 mph (67.69 km/h) |
| 45 mph (72.42 km/h) | 47.32 mph (76.15 km/h) |
| 50 mph (80.47 km/h) | 52.58 mph (84.61 km/h) |
| 55 mph (88.51 km/h) | 57.83 mph (93.08 km/h) |
| 60 mph (96.56 km/h) | 63.09 mph (101.54 km/h) |
| 65 mph (104.61 km/h) | 68.35 mph (110 km/h) |
| 70 mph (112.65 km/h) | 73.61 mph (118.46 km/h) |
| 75 mph (120.7 km/h) | 78.86 mph (126.92 km/h) |
| 80 mph (128.75 km/h) | 84.12 mph (135.38 km/h) |
| 85 mph (136.79 km/h) | 89.38 mph (143.84 km/h) |
| 90 mph (144.84 km/h) | 94.64 mph (152.3 km/h) |
| 95 mph (152.89 km/h) | 99.9 mph (160.77 km/h) |
| 100 mph (160.93 km/h) | 105.15 mph (169.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | 2319 | 2498 | 2608 | 2727 | 2812 | 2905 | 3016 | 3169 | 3322 | 3492 | 3627 | 3874 | 4146 | 4358 | 4494 | 4570 | 4851 | 5242 | 6091 |
Better Fuel Economy Factory Ratios Increased Power
