Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/70-15 | 160/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 25.08 (637) | 0.16 (4) 0.6% |
| Width inches (mm) | 7.09 (180) | 6.3 (160) | -0.79 (-20) -11.1% |
| Circum. inches (mm) | 78.29 (1988.63) | 78.79 (2001.19) | 0.49 (12.57) 0.6% |
| Sidewall Height inches (mm) | 4.96 (126) | 5.04 (128) | 0.08 (2) 1.6% |
| Revolutions per mile (km) | 809.27 (502.86) | 804.19 (499.7) | -5.08 (-3.16) -0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.13 mph (32.39 km/h) |
| 25 mph (40.23 km/h) | 25.16 mph (40.49 km/h) |
| 30 mph (48.28 km/h) | 30.19 mph (48.59 km/h) |
| 35 mph (56.33 km/h) | 35.22 mph (56.68 km/h) |
| 40 mph (64.37 km/h) | 40.25 mph (64.78 km/h) |
| 45 mph (72.42 km/h) | 45.28 mph (72.88 km/h) |
| 50 mph (80.47 km/h) | 50.32 mph (80.98 km/h) |
| 55 mph (88.51 km/h) | 55.35 mph (89.07 km/h) |
| 60 mph (96.56 km/h) | 60.38 mph (97.17 km/h) |
| 65 mph (104.61 km/h) | 65.41 mph (105.27 km/h) |
| 70 mph (112.65 km/h) | 70.44 mph (113.37 km/h) |
| 75 mph (120.7 km/h) | 75.47 mph (121.46 km/h) |
| 80 mph (128.75 km/h) | 80.51 mph (129.56 km/h) |
| 85 mph (136.79 km/h) | 85.54 mph (137.66 km/h) |
| 90 mph (144.84 km/h) | 90.57 mph (145.76 km/h) |
| 95 mph (152.89 km/h) | 95.6 mph (153.85 km/h) |
| 100 mph (160.93 km/h) | 100.63 mph (161.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2047 | 2377 | 2560 | 2674 | 2795 | 2883 | 2978 | 3092 | 3248 | 3405 | 3579 | 3719 | 3971 | 4250 | 4467 | 4607 | 4685 | 4973 | 5373 | 6244 |
Better Fuel Economy Factory Ratios Increased Power
