Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/80-15 | 170/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.45 (621) | 23.03 (585) | -1.42 (-36) -5.8% |
| Width inches (mm) | 5.91 (150) | 6.69 (170) | 0.79 (20) 13.3% |
| Circum. inches (mm) | 76.81 (1950.93) | 72.36 (1837.83) | -4.45 (-113.1) -5.8% |
| Sidewall Height inches (mm) | 4.72 (120) | 4.02 (102) | -0.71 (-18) -15% |
| Revolutions per mile (km) | 824.91 (512.58) | 875.68 (544.12) | 50.76 (31.54) 6.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.84 mph (30.32 km/h) |
| 25 mph (40.23 km/h) | 23.55 mph (37.9 km/h) |
| 30 mph (48.28 km/h) | 28.26 mph (45.48 km/h) |
| 35 mph (56.33 km/h) | 32.97 mph (53.06 km/h) |
| 40 mph (64.37 km/h) | 37.68 mph (60.64 km/h) |
| 45 mph (72.42 km/h) | 42.39 mph (68.22 km/h) |
| 50 mph (80.47 km/h) | 47.1 mph (75.8 km/h) |
| 55 mph (88.51 km/h) | 51.81 mph (83.38 km/h) |
| 60 mph (96.56 km/h) | 56.52 mph (90.96 km/h) |
| 65 mph (104.61 km/h) | 61.23 mph (98.54 km/h) |
| 70 mph (112.65 km/h) | 65.94 mph (106.12 km/h) |
| 75 mph (120.7 km/h) | 70.65 mph (113.7 km/h) |
| 80 mph (128.75 km/h) | 75.36 mph (121.28 km/h) |
| 85 mph (136.79 km/h) | 80.07 mph (128.86 km/h) |
| 90 mph (144.84 km/h) | 84.78 mph (136.44 km/h) |
| 95 mph (152.89 km/h) | 89.49 mph (144.02 km/h) |
| 100 mph (160.93 km/h) | 94.2 mph (151.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | 2589 | 2788 | 2911 | 3044 | 3139 | 3243 | 3366 | 3537 | 3708 | 3897 | 4049 | 4324 | 4628 | 4865 | 5016 | 5102 | 5415 | 5851 | 6799 |
Better Fuel Economy Factory Ratios Increased Power
