Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/70-15 | 170/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.02 (661) | 25.71 (653) | -0.31 (-8) -1.2% |
| Width inches (mm) | 7.87 (200) | 6.69 (170) | -1.18 (-30) -15% |
| Circum. inches (mm) | 81.76 (2076.59) | 80.77 (2051.46) | -0.99 (-25.13) -1.2% |
| Sidewall Height inches (mm) | 5.51 (140) | 5.35 (136) | -0.16 (-4) -2.9% |
| Revolutions per mile (km) | 774.99 (481.56) | 784.49 (487.46) | 9.49 (5.9) 1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.76 mph (31.8 km/h) |
| 25 mph (40.23 km/h) | 24.7 mph (39.75 km/h) |
| 30 mph (48.28 km/h) | 29.64 mph (47.7 km/h) |
| 35 mph (56.33 km/h) | 34.58 mph (55.65 km/h) |
| 40 mph (64.37 km/h) | 39.52 mph (63.59 km/h) |
| 45 mph (72.42 km/h) | 44.46 mph (71.54 km/h) |
| 50 mph (80.47 km/h) | 49.39 mph (79.49 km/h) |
| 55 mph (88.51 km/h) | 54.33 mph (87.44 km/h) |
| 60 mph (96.56 km/h) | 59.27 mph (95.39 km/h) |
| 65 mph (104.61 km/h) | 64.21 mph (103.34 km/h) |
| 70 mph (112.65 km/h) | 69.15 mph (111.29 km/h) |
| 75 mph (120.7 km/h) | 74.09 mph (119.24 km/h) |
| 80 mph (128.75 km/h) | 79.03 mph (127.19 km/h) |
| 85 mph (136.79 km/h) | 83.97 mph (135.14 km/h) |
| 90 mph (144.84 km/h) | 88.91 mph (143.09 km/h) |
| 95 mph (152.89 km/h) | 93.85 mph (151.04 km/h) |
| 100 mph (160.93 km/h) | 98.79 mph (158.99 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
