Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/50-17 | 155/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.28 (616.8) | 24.32 (617.8) | 0.04 (1) 0.2% |
| Width inches (mm) | 7.28 (185) | 6.1 (155) | -1.18 (-30) -16.2% |
| Circum. inches (mm) | 76.29 (1937.73) | 76.41 (1940.88) | 0.12 (3.14) 0.2% |
| Sidewall Height inches (mm) | 3.64 (92.5) | 3.66 (93) | 0.02 (0.5) 0.5% |
| Revolutions per mile (km) | 830.53 (516.07) | 829.18 (515.23) | -1.34 (-0.84) -0.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.03 mph (32.24 km/h) |
| 25 mph (40.23 km/h) | 25.04 mph (40.3 km/h) |
| 30 mph (48.28 km/h) | 30.05 mph (48.36 km/h) |
| 35 mph (56.33 km/h) | 35.06 mph (56.42 km/h) |
| 40 mph (64.37 km/h) | 40.06 mph (64.48 km/h) |
| 45 mph (72.42 km/h) | 45.07 mph (72.54 km/h) |
| 50 mph (80.47 km/h) | 50.08 mph (80.6 km/h) |
| 55 mph (88.51 km/h) | 55.09 mph (88.66 km/h) |
| 60 mph (96.56 km/h) | 60.1 mph (96.72 km/h) |
| 65 mph (104.61 km/h) | 65.11 mph (104.78 km/h) |
| 70 mph (112.65 km/h) | 70.11 mph (112.84 km/h) |
| 75 mph (120.7 km/h) | 75.12 mph (120.9 km/h) |
| 80 mph (128.75 km/h) | 80.13 mph (128.96 km/h) |
| 85 mph (136.79 km/h) | 85.14 mph (137.02 km/h) |
| 90 mph (144.84 km/h) | 90.15 mph (145.08 km/h) |
| 95 mph (152.89 km/h) | 95.15 mph (153.14 km/h) |
| 100 mph (160.93 km/h) | 100.16 mph (161.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2110 | 2451 | 2640 | 2757 | 2882 | 2972 | 3071 | 3188 | 3349 | 3511 | 3690 | 3834 | 4095 | 4382 | 4606 | 4750 | 4831 | 5127 | 5540 | 6438 |
Better Fuel Economy Factory Ratios Increased Power
