Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-19.5 | 305/70-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.66 (880.3) | 36.31 (922.3) | 1.65 (42) 4.8% |
| Width inches (mm) | 10.83 (275) | 12.01 (305) | 1.18 (30) 10.9% |
| Circum. inches (mm) | 108.88 (2765.54) | 114.07 (2897.49) | 5.19 (131.95) 4.8% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 8.41 (213.5) | 0.83 (21) 10.9% |
| Revolutions per mile (km) | 581.93 (361.59) | 555.43 (345.13) | -26.5 (-16.47) -4.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.72 km/h) |
| 25 mph (40.23 km/h) | 26.19 mph (42.15 km/h) |
| 30 mph (48.28 km/h) | 31.43 mph (50.58 km/h) |
| 35 mph (56.33 km/h) | 36.67 mph (59.01 km/h) |
| 40 mph (64.37 km/h) | 41.91 mph (67.45 km/h) |
| 45 mph (72.42 km/h) | 47.15 mph (75.88 km/h) |
| 50 mph (80.47 km/h) | 52.39 mph (84.31 km/h) |
| 55 mph (88.51 km/h) | 57.62 mph (92.74 km/h) |
| 60 mph (96.56 km/h) | 62.86 mph (101.17 km/h) |
| 65 mph (104.61 km/h) | 68.1 mph (109.6 km/h) |
| 70 mph (112.65 km/h) | 73.34 mph (118.03 km/h) |
| 75 mph (120.7 km/h) | 78.58 mph (126.46 km/h) |
| 80 mph (128.75 km/h) | 83.82 mph (134.89 km/h) |
| 85 mph (136.79 km/h) | 89.06 mph (143.32 km/h) |
| 90 mph (144.84 km/h) | 94.29 mph (151.75 km/h) |
| 95 mph (152.89 km/h) | 99.53 mph (160.18 km/h) |
| 100 mph (160.93 km/h) | 104.77 mph (168.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1413 | 1642 | 1768 | 1847 | 1931 | 1991 | 2057 | 2135 | 2243 | 2352 | 2472 | 2568 | 2743 | 2935 | 3086 | 3182 | 3236 | 3434 | 3711 | 4313 |
Better Fuel Economy Factory Ratios Increased Power
