Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/80-15 | 160/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.71 (653) | 25.08 (637) | -0.63 (-16) -2.5% |
| Width inches (mm) | 6.69 (170) | 6.3 (160) | -0.39 (-10) -5.9% |
| Circum. inches (mm) | 80.77 (2051.46) | 78.79 (2001.19) | -1.98 (-50.27) -2.5% |
| Sidewall Height inches (mm) | 5.35 (136) | 5.04 (128) | -0.31 (-8) -5.9% |
| Revolutions per mile (km) | 784.49 (487.46) | 804.19 (499.7) | 19.7 (12.24) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.4 km/h) |
| 25 mph (40.23 km/h) | 24.39 mph (39.25 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.1 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.95 km/h) |
| 40 mph (64.37 km/h) | 39.02 mph (62.8 km/h) |
| 45 mph (72.42 km/h) | 43.9 mph (70.65 km/h) |
| 50 mph (80.47 km/h) | 48.77 mph (78.5 km/h) |
| 55 mph (88.51 km/h) | 53.65 mph (86.35 km/h) |
| 60 mph (96.56 km/h) | 58.53 mph (94.19 km/h) |
| 65 mph (104.61 km/h) | 63.41 mph (102.04 km/h) |
| 70 mph (112.65 km/h) | 68.28 mph (109.89 km/h) |
| 75 mph (120.7 km/h) | 73.16 mph (117.74 km/h) |
| 80 mph (128.75 km/h) | 78.04 mph (125.59 km/h) |
| 85 mph (136.79 km/h) | 82.92 mph (133.44 km/h) |
| 90 mph (144.84 km/h) | 87.79 mph (141.29 km/h) |
| 95 mph (152.89 km/h) | 92.67 mph (149.14 km/h) |
| 100 mph (160.93 km/h) | 97.55 mph (156.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
