Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/50-14 | 185/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.28 (540.6) | 22.28 (566) | 1 (25.4) 4.7% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 66.86 (1698.34) | 70.01 (1778.14) | 3.14 (79.8) 4.7% |
| Sidewall Height inches (mm) | 3.64 (92.5) | 3.64 (92.5) | 0 (0) 0% |
| Revolutions per mile (km) | 947.6 (588.81) | 905.07 (562.38) | -42.52 (-26.42) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.7 km/h) |
| 25 mph (40.23 km/h) | 26.17 mph (42.12 km/h) |
| 30 mph (48.28 km/h) | 31.41 mph (50.55 km/h) |
| 35 mph (56.33 km/h) | 36.64 mph (58.97 km/h) |
| 40 mph (64.37 km/h) | 41.88 mph (67.4 km/h) |
| 45 mph (72.42 km/h) | 47.11 mph (75.82 km/h) |
| 50 mph (80.47 km/h) | 52.35 mph (84.25 km/h) |
| 55 mph (88.51 km/h) | 57.58 mph (92.67 km/h) |
| 60 mph (96.56 km/h) | 62.82 mph (101.1 km/h) |
| 65 mph (104.61 km/h) | 68.05 mph (109.52 km/h) |
| 70 mph (112.65 km/h) | 73.29 mph (117.95 km/h) |
| 75 mph (120.7 km/h) | 78.52 mph (126.37 km/h) |
| 80 mph (128.75 km/h) | 83.76 mph (134.8 km/h) |
| 85 mph (136.79 km/h) | 88.99 mph (143.22 km/h) |
| 90 mph (144.84 km/h) | 94.23 mph (151.65 km/h) |
| 95 mph (152.89 km/h) | 99.46 mph (160.07 km/h) |
| 100 mph (160.93 km/h) | 104.7 mph (168.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2303 | 2676 | 2881 | 3009 | 3146 | 3244 | 3352 | 3479 | 3656 | 3832 | 4028 | 4185 | 4469 | 4783 | 5028 | 5185 | 5273 | 5596 | 6047 | 7027 |
Better Fuel Economy Factory Ratios Increased Power
