Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-12 | 195/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.15 (486.3) | 24.28 (616.8) | 5.14 (130.5) 26.8% |
| Width inches (mm) | 6.5 (165) | 7.68 (195) | 1.18 (30) 18.2% |
| Circum. inches (mm) | 60.15 (1527.76) | 76.29 (1937.73) | 16.14 (409.98) 26.8% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 6.14 (156) | 2.57 (65.25) 71.9% |
| Revolutions per mile (km) | 1053.4 (654.55) | 830.53 (516.07) | -222.87 (-138.49) -21.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.37 mph (40.82 km/h) |
| 25 mph (40.23 km/h) | 31.71 mph (51.03 km/h) |
| 30 mph (48.28 km/h) | 38.05 mph (61.24 km/h) |
| 35 mph (56.33 km/h) | 44.39 mph (71.44 km/h) |
| 40 mph (64.37 km/h) | 50.73 mph (81.65 km/h) |
| 45 mph (72.42 km/h) | 57.08 mph (91.85 km/h) |
| 50 mph (80.47 km/h) | 63.42 mph (102.06 km/h) |
| 55 mph (88.51 km/h) | 69.76 mph (112.27 km/h) |
| 60 mph (96.56 km/h) | 76.1 mph (122.47 km/h) |
| 65 mph (104.61 km/h) | 82.44 mph (132.68 km/h) |
| 70 mph (112.65 km/h) | 88.78 mph (142.89 km/h) |
| 75 mph (120.7 km/h) | 95.13 mph (153.09 km/h) |
| 80 mph (128.75 km/h) | 101.47 mph (163.3 km/h) |
| 85 mph (136.79 km/h) | 107.81 mph (173.5 km/h) |
| 90 mph (144.84 km/h) | 114.15 mph (183.71 km/h) |
| 95 mph (152.89 km/h) | 120.49 mph (193.92 km/h) |
| 100 mph (160.93 km/h) | 126.84 mph (204.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2114 | 2455 | 2644 | 2761 | 2887 | 2977 | 3076 | 3193 | 3355 | 3517 | 3696 | 3840 | 4101 | 4389 | 4614 | 4758 | 4839 | 5135 | 5549 | 6449 |
Better Fuel Economy Factory Ratios Increased Power
