Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 165/90-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 30.69 (779.6) | 1 (25.4) 3.4% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 93.28 (2369.39) | 96.42 (2449.19) | 3.14 (79.8) 3.4% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 5.85 (148.5) | 0 (0) 0% |
| Revolutions per mile (km) | 679.22 (422.05) | 657.09 (408.3) | -22.13 (-13.75) -3.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.67 mph (33.27 km/h) |
| 25 mph (40.23 km/h) | 25.84 mph (41.59 km/h) |
| 30 mph (48.28 km/h) | 31.01 mph (49.91 km/h) |
| 35 mph (56.33 km/h) | 36.18 mph (58.22 km/h) |
| 40 mph (64.37 km/h) | 41.35 mph (66.54 km/h) |
| 45 mph (72.42 km/h) | 46.52 mph (74.86 km/h) |
| 50 mph (80.47 km/h) | 51.68 mph (83.18 km/h) |
| 55 mph (88.51 km/h) | 56.85 mph (91.5 km/h) |
| 60 mph (96.56 km/h) | 62.02 mph (99.81 km/h) |
| 65 mph (104.61 km/h) | 67.19 mph (108.13 km/h) |
| 70 mph (112.65 km/h) | 72.36 mph (116.45 km/h) |
| 75 mph (120.7 km/h) | 77.53 mph (124.77 km/h) |
| 80 mph (128.75 km/h) | 82.69 mph (133.08 km/h) |
| 85 mph (136.79 km/h) | 87.86 mph (141.4 km/h) |
| 90 mph (144.84 km/h) | 93.03 mph (149.72 km/h) |
| 95 mph (152.89 km/h) | 98.2 mph (158.04 km/h) |
| 100 mph (160.93 km/h) | 103.37 mph (166.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1672 | 1943 | 2092 | 2185 | 2284 | 2355 | 2434 | 2526 | 2654 | 2782 | 2925 | 3038 | 3245 | 3472 | 3650 | 3764 | 3828 | 4063 | 4390 | 5102 |
Better Fuel Economy Factory Ratios Increased Power
