Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 34.3/12.2-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 34.35 (872.6) | 4.66 (118.4) 15.7% |
| Width inches (mm) | 6.5 (165) | 12.2 (310) | 5.71 (145) 87.9% |
| Circum. inches (mm) | 93.28 (2369.39) | 107.93 (2741.35) | 14.64 (371.96) 15.7% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 8.18 (207.7) | 2.33 (59.2) 39.9% |
| Revolutions per mile (km) | 679.22 (422.05) | 587.06 (364.78) | -92.16 (-57.27) -13.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.14 mph (37.24 km/h) |
| 25 mph (40.23 km/h) | 28.92 mph (46.55 km/h) |
| 30 mph (48.28 km/h) | 34.71 mph (55.86 km/h) |
| 35 mph (56.33 km/h) | 40.49 mph (65.17 km/h) |
| 40 mph (64.37 km/h) | 46.28 mph (74.48 km/h) |
| 45 mph (72.42 km/h) | 52.06 mph (83.79 km/h) |
| 50 mph (80.47 km/h) | 57.85 mph (93.1 km/h) |
| 55 mph (88.51 km/h) | 63.63 mph (102.41 km/h) |
| 60 mph (96.56 km/h) | 69.42 mph (111.72 km/h) |
| 65 mph (104.61 km/h) | 75.2 mph (121.03 km/h) |
| 70 mph (112.65 km/h) | 80.99 mph (130.34 km/h) |
| 75 mph (120.7 km/h) | 86.77 mph (139.65 km/h) |
| 80 mph (128.75 km/h) | 92.56 mph (148.96 km/h) |
| 85 mph (136.79 km/h) | 98.34 mph (158.27 km/h) |
| 90 mph (144.84 km/h) | 104.13 mph (167.58 km/h) |
| 95 mph (152.89 km/h) | 109.91 mph (176.89 km/h) |
| 100 mph (160.93 km/h) | 115.7 mph (186.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1494 | 1736 | 1869 | 1952 | 2041 | 2104 | 2174 | 2257 | 2371 | 2486 | 2613 | 2715 | 2899 | 3102 | 3261 | 3363 | 3420 | 3630 | 3922 | 4558 |
Better Fuel Economy Factory Ratios Increased Power
