Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/50-17 | 27/7.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.28 (616.8) | 27.08 (687.74) | 2.79 (70.94) 11.5% |
| Width inches (mm) | 7.28 (185) | 7.52 (191) | 0.24 (6) 3.2% |
| Circum. inches (mm) | 76.29 (1937.73) | 85.06 (2160.6) | 8.77 (222.86) 11.5% |
| Sidewall Height inches (mm) | 3.64 (92.5) | 5.04 (127.97) | 1.4 (35.47) 38.3% |
| Revolutions per mile (km) | 830.53 (516.07) | 744.86 (462.83) | -85.67 (-53.23) -10.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.3 mph (35.89 km/h) |
| 25 mph (40.23 km/h) | 27.88 mph (44.86 km/h) |
| 30 mph (48.28 km/h) | 33.45 mph (53.83 km/h) |
| 35 mph (56.33 km/h) | 39.03 mph (62.81 km/h) |
| 40 mph (64.37 km/h) | 44.6 mph (71.78 km/h) |
| 45 mph (72.42 km/h) | 50.18 mph (80.75 km/h) |
| 50 mph (80.47 km/h) | 55.75 mph (89.72 km/h) |
| 55 mph (88.51 km/h) | 61.33 mph (98.69 km/h) |
| 60 mph (96.56 km/h) | 66.9 mph (107.67 km/h) |
| 65 mph (104.61 km/h) | 72.48 mph (116.64 km/h) |
| 70 mph (112.65 km/h) | 78.05 mph (125.61 km/h) |
| 75 mph (120.7 km/h) | 83.63 mph (134.58 km/h) |
| 80 mph (128.75 km/h) | 89.2 mph (143.56 km/h) |
| 85 mph (136.79 km/h) | 94.78 mph (152.53 km/h) |
| 90 mph (144.84 km/h) | 100.35 mph (161.5 km/h) |
| 95 mph (152.89 km/h) | 105.93 mph (170.47 km/h) |
| 100 mph (160.93 km/h) | 111.5 mph (179.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1896 | 2202 | 2371 | 2476 | 2589 | 2670 | 2759 | 2863 | 3009 | 3154 | 3315 | 3444 | 3678 | 3936 | 4138 | 4267 | 4340 | 4606 | 4977 | 5783 |
Better Fuel Economy Factory Ratios Increased Power
