Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-12 | 245/65-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.15 (486.3) | 28.54 (724.9) | 9.39 (238.6) 49.1% |
| Width inches (mm) | 6.5 (165) | 9.65 (245) | 3.15 (80) 48.5% |
| Circum. inches (mm) | 60.15 (1527.76) | 89.66 (2277.34) | 29.51 (749.58) 49.1% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 6.27 (159.25) | 2.7 (68.5) 75.5% |
| Revolutions per mile (km) | 1053.4 (654.55) | 706.68 (439.11) | -346.73 (-215.45) -32.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.81 mph (47.98 km/h) |
| 25 mph (40.23 km/h) | 37.27 mph (59.97 km/h) |
| 30 mph (48.28 km/h) | 44.72 mph (71.97 km/h) |
| 35 mph (56.33 km/h) | 52.17 mph (83.96 km/h) |
| 40 mph (64.37 km/h) | 59.63 mph (95.96 km/h) |
| 45 mph (72.42 km/h) | 67.08 mph (107.95 km/h) |
| 50 mph (80.47 km/h) | 74.53 mph (119.95 km/h) |
| 55 mph (88.51 km/h) | 81.99 mph (131.94 km/h) |
| 60 mph (96.56 km/h) | 89.44 mph (143.94 km/h) |
| 65 mph (104.61 km/h) | 96.89 mph (155.93 km/h) |
| 70 mph (112.65 km/h) | 104.35 mph (167.93 km/h) |
| 75 mph (120.7 km/h) | 111.8 mph (179.92 km/h) |
| 80 mph (128.75 km/h) | 119.25 mph (191.92 km/h) |
| 85 mph (136.79 km/h) | 126.7 mph (203.91 km/h) |
| 90 mph (144.84 km/h) | 134.16 mph (215.91 km/h) |
| 95 mph (152.89 km/h) | 141.61 mph (227.9 km/h) |
| 100 mph (160.93 km/h) | 149.06 mph (239.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1798 | 2089 | 2250 | 2349 | 2456 | 2533 | 2617 | 2717 | 2854 | 2992 | 3145 | 3268 | 3490 | 3734 | 3926 | 4048 | 4117 | 4370 | 4722 | 5487 |
Better Fuel Economy Factory Ratios Increased Power
