Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-16 | 225/46-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.47 (646.9) | 25.15 (638.8) | -0.32 (-8.1) -1.3% |
| Width inches (mm) | 7.28 (185) | 8.86 (225) | 1.57 (40) 21.6% |
| Circum. inches (mm) | 80.01 (2032.3) | 79.01 (2006.85) | -1 (-25.45) -1.3% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.07 (103.5) | -0.66 (-16.75) -13.9% |
| Revolutions per mile (km) | 791.88 (492.05) | 801.93 (498.29) | 10.04 (6.24) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.75 mph (31.78 km/h) |
| 25 mph (40.23 km/h) | 24.69 mph (39.73 km/h) |
| 30 mph (48.28 km/h) | 29.62 mph (47.68 km/h) |
| 35 mph (56.33 km/h) | 34.56 mph (55.62 km/h) |
| 40 mph (64.37 km/h) | 39.5 mph (63.57 km/h) |
| 45 mph (72.42 km/h) | 44.44 mph (71.51 km/h) |
| 50 mph (80.47 km/h) | 49.37 mph (79.46 km/h) |
| 55 mph (88.51 km/h) | 54.31 mph (87.41 km/h) |
| 60 mph (96.56 km/h) | 59.25 mph (95.35 km/h) |
| 65 mph (104.61 km/h) | 64.19 mph (103.3 km/h) |
| 70 mph (112.65 km/h) | 69.12 mph (111.24 km/h) |
| 75 mph (120.7 km/h) | 74.06 mph (119.19 km/h) |
| 80 mph (128.75 km/h) | 79 mph (127.14 km/h) |
| 85 mph (136.79 km/h) | 83.94 mph (135.08 km/h) |
| 90 mph (144.84 km/h) | 88.87 mph (143.03 km/h) |
| 95 mph (152.89 km/h) | 93.81 mph (150.97 km/h) |
| 100 mph (160.93 km/h) | 98.75 mph (158.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2041 | 2371 | 2553 | 2666 | 2788 | 2874 | 2970 | 3083 | 3239 | 3395 | 3569 | 3708 | 3960 | 4238 | 4455 | 4594 | 4672 | 4959 | 5358 | 6226 |
Better Fuel Economy Factory Ratios Increased Power
