Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 296/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 35.48 (901.2) | 5.08 (129) 16.7% |
| Width inches (mm) | 6.89 (175) | 11.65 (296) | 4.76 (121) 69.1% |
| Circum. inches (mm) | 95.51 (2425.94) | 111.46 (2831.2) | 15.96 (405.27) 16.7% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 8.74 (222) | 2.54 (64.5) 41% |
| Revolutions per mile (km) | 663.39 (412.21) | 568.43 (353.21) | -94.96 (-59) -14.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.34 mph (37.56 km/h) |
| 25 mph (40.23 km/h) | 29.18 mph (46.95 km/h) |
| 30 mph (48.28 km/h) | 35.01 mph (56.35 km/h) |
| 35 mph (56.33 km/h) | 40.85 mph (65.74 km/h) |
| 40 mph (64.37 km/h) | 46.68 mph (75.13 km/h) |
| 45 mph (72.42 km/h) | 52.52 mph (84.52 km/h) |
| 50 mph (80.47 km/h) | 58.35 mph (93.91 km/h) |
| 55 mph (88.51 km/h) | 64.19 mph (103.3 km/h) |
| 60 mph (96.56 km/h) | 70.02 mph (112.69 km/h) |
| 65 mph (104.61 km/h) | 75.86 mph (122.08 km/h) |
| 70 mph (112.65 km/h) | 81.69 mph (131.47 km/h) |
| 75 mph (120.7 km/h) | 87.53 mph (140.86 km/h) |
| 80 mph (128.75 km/h) | 93.36 mph (150.26 km/h) |
| 85 mph (136.79 km/h) | 99.2 mph (159.65 km/h) |
| 90 mph (144.84 km/h) | 105.03 mph (169.04 km/h) |
| 95 mph (152.89 km/h) | 110.87 mph (178.43 km/h) |
| 100 mph (160.93 km/h) | 116.71 mph (187.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1447 | 1680 | 1810 | 1890 | 1976 | 2037 | 2105 | 2185 | 2296 | 2407 | 2530 | 2628 | 2807 | 3004 | 3158 | 3256 | 3312 | 3515 | 3798 | 4414 |
Better Fuel Economy Factory Ratios Increased Power
