Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 160/60-15 | 27/12-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.56 (573) | 27.01 (686) | 4.45 (113) 19.7% |
| Width inches (mm) | 6.3 (160) | 12.01 (305) | 5.71 (145) 90.6% |
| Circum. inches (mm) | 70.87 (1800.13) | 84.85 (2155.13) | 13.98 (355) 19.7% |
| Sidewall Height inches (mm) | 3.78 (96) | 6 (152.5) | 2.22 (56.5) 58.9% |
| Revolutions per mile (km) | 894.01 (555.51) | 746.75 (464.01) | -147.26 (-91.51) -16.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.94 mph (38.53 km/h) |
| 25 mph (40.23 km/h) | 29.93 mph (48.17 km/h) |
| 30 mph (48.28 km/h) | 35.92 mph (57.8 km/h) |
| 35 mph (56.33 km/h) | 41.9 mph (67.44 km/h) |
| 40 mph (64.37 km/h) | 47.89 mph (77.07 km/h) |
| 45 mph (72.42 km/h) | 53.87 mph (86.7 km/h) |
| 50 mph (80.47 km/h) | 59.86 mph (96.34 km/h) |
| 55 mph (88.51 km/h) | 65.85 mph (105.97 km/h) |
| 60 mph (96.56 km/h) | 71.83 mph (115.6 km/h) |
| 65 mph (104.61 km/h) | 77.82 mph (125.24 km/h) |
| 70 mph (112.65 km/h) | 83.8 mph (134.87 km/h) |
| 75 mph (120.7 km/h) | 89.79 mph (144.5 km/h) |
| 80 mph (128.75 km/h) | 95.78 mph (154.14 km/h) |
| 85 mph (136.79 km/h) | 101.76 mph (163.77 km/h) |
| 90 mph (144.84 km/h) | 107.75 mph (173.41 km/h) |
| 95 mph (152.89 km/h) | 113.73 mph (183.04 km/h) |
| 100 mph (160.93 km/h) | 119.72 mph (192.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1900 | 2208 | 2377 | 2483 | 2596 | 2677 | 2766 | 2871 | 3016 | 3162 | 3324 | 3453 | 3687 | 3946 | 4148 | 4278 | 4351 | 4617 | 4989 | 5798 |
Better Fuel Economy Factory Ratios Increased Power
