Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/80-16 | 185/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.45 (646.4) | 25.01 (635.3) | -0.44 (-11.1) -1.7% |
| Width inches (mm) | 5.91 (150) | 7.28 (185) | 1.38 (35) 23.3% |
| Circum. inches (mm) | 79.95 (2030.73) | 78.58 (1995.85) | -1.37 (-34.87) -1.7% |
| Sidewall Height inches (mm) | 4.72 (120) | 4.01 (101.75) | -0.72 (-18.25) -15.2% |
| Revolutions per mile (km) | 792.5 (492.43) | 806.34 (501.04) | 13.85 (8.6) 1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.66 mph (31.63 km/h) |
| 25 mph (40.23 km/h) | 24.57 mph (39.54 km/h) |
| 30 mph (48.28 km/h) | 29.48 mph (47.45 km/h) |
| 35 mph (56.33 km/h) | 34.4 mph (55.36 km/h) |
| 40 mph (64.37 km/h) | 39.31 mph (63.27 km/h) |
| 45 mph (72.42 km/h) | 44.23 mph (71.18 km/h) |
| 50 mph (80.47 km/h) | 49.14 mph (79.09 km/h) |
| 55 mph (88.51 km/h) | 54.06 mph (86.99 km/h) |
| 60 mph (96.56 km/h) | 58.97 mph (94.9 km/h) |
| 65 mph (104.61 km/h) | 63.88 mph (102.81 km/h) |
| 70 mph (112.65 km/h) | 68.8 mph (110.72 km/h) |
| 75 mph (120.7 km/h) | 73.71 mph (118.63 km/h) |
| 80 mph (128.75 km/h) | 78.63 mph (126.54 km/h) |
| 85 mph (136.79 km/h) | 83.54 mph (134.45 km/h) |
| 90 mph (144.84 km/h) | 88.45 mph (142.35 km/h) |
| 95 mph (152.89 km/h) | 93.37 mph (150.26 km/h) |
| 100 mph (160.93 km/h) | 98.28 mph (158.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2052 | 2384 | 2567 | 2681 | 2803 | 2890 | 2986 | 3100 | 3257 | 3414 | 3589 | 3729 | 3982 | 4261 | 4479 | 4619 | 4698 | 4986 | 5388 | 6261 |
Better Fuel Economy Factory Ratios Increased Power
