Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/50-18 | 295/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.22 (742.2) | 28.45 (722.7) | -0.77 (-19.5) -2.6% |
| Width inches (mm) | 11.22 (285) | 11.61 (295) | 0.39 (10) 3.5% |
| Circum. inches (mm) | 91.8 (2331.69) | 89.39 (2270.43) | -2.41 (-61.26) -2.6% |
| Sidewall Height inches (mm) | 5.61 (142.5) | 5.23 (132.75) | -0.38 (-9.75) -6.8% |
| Revolutions per mile (km) | 690.2 (428.87) | 708.83 (440.44) | 18.62 (11.57) 2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.47 mph (31.34 km/h) |
| 25 mph (40.23 km/h) | 24.34 mph (39.18 km/h) |
| 30 mph (48.28 km/h) | 29.21 mph (47.01 km/h) |
| 35 mph (56.33 km/h) | 34.08 mph (54.85 km/h) |
| 40 mph (64.37 km/h) | 38.95 mph (62.68 km/h) |
| 45 mph (72.42 km/h) | 43.82 mph (70.52 km/h) |
| 50 mph (80.47 km/h) | 48.69 mph (78.35 km/h) |
| 55 mph (88.51 km/h) | 53.55 mph (86.19 km/h) |
| 60 mph (96.56 km/h) | 58.42 mph (94.02 km/h) |
| 65 mph (104.61 km/h) | 63.29 mph (101.86 km/h) |
| 70 mph (112.65 km/h) | 68.16 mph (109.69 km/h) |
| 75 mph (120.7 km/h) | 73.03 mph (117.53 km/h) |
| 80 mph (128.75 km/h) | 77.9 mph (125.37 km/h) |
| 85 mph (136.79 km/h) | 82.77 mph (133.2 km/h) |
| 90 mph (144.84 km/h) | 87.64 mph (141.04 km/h) |
| 95 mph (152.89 km/h) | 92.5 mph (148.87 km/h) |
| 100 mph (160.93 km/h) | 97.37 mph (156.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1804 | 2096 | 2257 | 2356 | 2464 | 2541 | 2625 | 2725 | 2863 | 3001 | 3155 | 3278 | 3500 | 3746 | 3938 | 4061 | 4130 | 4383 | 4736 | 5504 |
Better Fuel Economy Factory Ratios Increased Power
