Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/80-15 | 200/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.71 (653) | 26.02 (661) | 0.31 (8) 1.2% |
| Width inches (mm) | 6.69 (170) | 7.87 (200) | 1.18 (30) 17.6% |
| Circum. inches (mm) | 80.77 (2051.46) | 81.76 (2076.59) | 0.99 (25.13) 1.2% |
| Sidewall Height inches (mm) | 5.35 (136) | 5.51 (140) | 0.16 (4) 2.9% |
| Revolutions per mile (km) | 784.49 (487.46) | 774.99 (481.56) | -9.49 (-5.9) -1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.25 mph (32.58 km/h) |
| 25 mph (40.23 km/h) | 25.31 mph (40.73 km/h) |
| 30 mph (48.28 km/h) | 30.37 mph (48.87 km/h) |
| 35 mph (56.33 km/h) | 35.43 mph (57.02 km/h) |
| 40 mph (64.37 km/h) | 40.49 mph (65.16 km/h) |
| 45 mph (72.42 km/h) | 45.55 mph (73.31 km/h) |
| 50 mph (80.47 km/h) | 50.61 mph (81.45 km/h) |
| 55 mph (88.51 km/h) | 55.67 mph (89.6 km/h) |
| 60 mph (96.56 km/h) | 60.74 mph (97.74 km/h) |
| 65 mph (104.61 km/h) | 65.8 mph (105.89 km/h) |
| 70 mph (112.65 km/h) | 70.86 mph (114.03 km/h) |
| 75 mph (120.7 km/h) | 75.92 mph (122.18 km/h) |
| 80 mph (128.75 km/h) | 80.98 mph (130.33 km/h) |
| 85 mph (136.79 km/h) | 86.04 mph (138.47 km/h) |
| 90 mph (144.84 km/h) | 91.1 mph (146.62 km/h) |
| 95 mph (152.89 km/h) | 96.16 mph (154.76 km/h) |
| 100 mph (160.93 km/h) | 101.23 mph (162.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1972 | 2291 | 2467 | 2576 | 2694 | 2778 | 2870 | 2979 | 3130 | 3281 | 3449 | 3584 | 3827 | 4095 | 4305 | 4440 | 4515 | 4792 | 5178 | 6017 |
Better Fuel Economy Factory Ratios Increased Power
