Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/85-19 | 274/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.69 (652.6) | 32.02 (813.4) | 6.33 (160.8) 24.6% |
| Width inches (mm) | 3.94 (100) | 10.79 (274) | 6.85 (174) 174% |
| Circum. inches (mm) | 80.72 (2050.2) | 100.61 (2555.37) | 19.89 (505.17) 24.6% |
| Sidewall Height inches (mm) | 3.35 (85) | 7.01 (178.1) | 3.67 (93.1) 109.5% |
| Revolutions per mile (km) | 784.97 (487.76) | 629.79 (391.33) | -155.18 (-96.42) -19.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.93 mph (40.12 km/h) |
| 25 mph (40.23 km/h) | 31.16 mph (50.15 km/h) |
| 30 mph (48.28 km/h) | 37.39 mph (60.18 km/h) |
| 35 mph (56.33 km/h) | 43.62 mph (70.21 km/h) |
| 40 mph (64.37 km/h) | 49.86 mph (80.24 km/h) |
| 45 mph (72.42 km/h) | 56.09 mph (90.26 km/h) |
| 50 mph (80.47 km/h) | 62.32 mph (100.29 km/h) |
| 55 mph (88.51 km/h) | 68.55 mph (110.32 km/h) |
| 60 mph (96.56 km/h) | 74.78 mph (120.35 km/h) |
| 65 mph (104.61 km/h) | 81.02 mph (130.38 km/h) |
| 70 mph (112.65 km/h) | 87.25 mph (140.41 km/h) |
| 75 mph (120.7 km/h) | 93.48 mph (150.44 km/h) |
| 80 mph (128.75 km/h) | 99.71 mph (160.47 km/h) |
| 85 mph (136.79 km/h) | 105.94 mph (170.5 km/h) |
| 90 mph (144.84 km/h) | 112.18 mph (180.53 km/h) |
| 95 mph (152.89 km/h) | 118.41 mph (190.56 km/h) |
| 100 mph (160.93 km/h) | 124.64 mph (200.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1603 | 1862 | 2005 | 2094 | 2189 | 2257 | 2332 | 2421 | 2544 | 2667 | 2803 | 2912 | 3110 | 3328 | 3499 | 3608 | 3669 | 3894 | 4208 | 4890 |
Better Fuel Economy Factory Ratios Increased Power
