Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-12 | 235/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.15 (486.3) | 26.8 (680.8) | 7.66 (194.5) 40% |
| Width inches (mm) | 6.5 (165) | 9.25 (235) | 2.76 (70) 42.4% |
| Circum. inches (mm) | 60.15 (1527.76) | 84.2 (2138.8) | 24.06 (611.04) 40% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 7.4 (188) | 3.83 (97.25) 107.2% |
| Revolutions per mile (km) | 1053.4 (654.55) | 752.45 (467.55) | -300.95 (-187) -28.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28 mph (45.06 km/h) |
| 25 mph (40.23 km/h) | 35 mph (56.33 km/h) |
| 30 mph (48.28 km/h) | 42 mph (67.59 km/h) |
| 35 mph (56.33 km/h) | 49 mph (78.86 km/h) |
| 40 mph (64.37 km/h) | 56 mph (90.12 km/h) |
| 45 mph (72.42 km/h) | 63 mph (101.39 km/h) |
| 50 mph (80.47 km/h) | 70 mph (112.65 km/h) |
| 55 mph (88.51 km/h) | 77 mph (123.92 km/h) |
| 60 mph (96.56 km/h) | 84 mph (135.18 km/h) |
| 65 mph (104.61 km/h) | 91 mph (146.45 km/h) |
| 70 mph (112.65 km/h) | 98 mph (157.71 km/h) |
| 75 mph (120.7 km/h) | 105 mph (168.98 km/h) |
| 80 mph (128.75 km/h) | 112 mph (180.24 km/h) |
| 85 mph (136.79 km/h) | 119 mph (191.51 km/h) |
| 90 mph (144.84 km/h) | 126 mph (202.77 km/h) |
| 95 mph (152.89 km/h) | 133 mph (214.04 km/h) |
| 100 mph (160.93 km/h) | 140 mph (225.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | 2224 | 2396 | 2502 | 2616 | 2697 | 2787 | 2893 | 3039 | 3186 | 3349 | 3479 | 3716 | 3976 | 4180 | 4310 | 4384 | 4653 | 5027 | 5842 |
Better Fuel Economy Factory Ratios Increased Power
