Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-18 | 305/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.51 (698.7) | 27.81 (706.3) | 0.3 (7.6) 1.1% |
| Width inches (mm) | 13.58 (345) | 12.01 (305) | -1.57 (-40) -11.6% |
| Circum. inches (mm) | 86.42 (2195.03) | 87.36 (2218.91) | 0.94 (23.88) 1.1% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 5.4 (137.25) | 0.65 (16.5) 13.7% |
| Revolutions per mile (km) | 733.18 (455.57) | 725.29 (450.67) | -7.89 (-4.9) -1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.22 mph (32.54 km/h) |
| 25 mph (40.23 km/h) | 25.27 mph (40.67 km/h) |
| 30 mph (48.28 km/h) | 30.33 mph (48.81 km/h) |
| 35 mph (56.33 km/h) | 35.38 mph (56.94 km/h) |
| 40 mph (64.37 km/h) | 40.44 mph (65.07 km/h) |
| 45 mph (72.42 km/h) | 45.49 mph (73.21 km/h) |
| 50 mph (80.47 km/h) | 50.54 mph (81.34 km/h) |
| 55 mph (88.51 km/h) | 55.6 mph (89.48 km/h) |
| 60 mph (96.56 km/h) | 60.65 mph (97.61 km/h) |
| 65 mph (104.61 km/h) | 65.71 mph (105.75 km/h) |
| 70 mph (112.65 km/h) | 70.76 mph (113.88 km/h) |
| 75 mph (120.7 km/h) | 75.82 mph (122.01 km/h) |
| 80 mph (128.75 km/h) | 80.87 mph (130.15 km/h) |
| 85 mph (136.79 km/h) | 85.92 mph (138.28 km/h) |
| 90 mph (144.84 km/h) | 90.98 mph (146.42 km/h) |
| 95 mph (152.89 km/h) | 96.03 mph (154.55 km/h) |
| 100 mph (160.93 km/h) | 101.09 mph (162.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1846 | 2144 | 2309 | 2411 | 2521 | 2600 | 2686 | 2788 | 2930 | 3071 | 3228 | 3354 | 3581 | 3833 | 4029 | 4155 | 4226 | 4485 | 4846 | 5631 |
Better Fuel Economy Factory Ratios Increased Power
