Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/35-19 | 305/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682.1) | 26.2 (665.6) | -0.65 (-16.5) -2.4% |
| Width inches (mm) | 11.22 (285) | 12.01 (305) | 0.79 (20) 7% |
| Circum. inches (mm) | 84.37 (2142.88) | 82.32 (2091.04) | -2.04 (-51.84) -2.4% |
| Sidewall Height inches (mm) | 3.93 (99.75) | 3.6 (91.5) | -0.32 (-8.25) -8.3% |
| Revolutions per mile (km) | 751.02 (466.66) | 769.64 (478.23) | 18.62 (11.57) 2.5% |
305/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.52 mph (31.41 km/h) |
| 25 mph (40.23 km/h) | 24.4 mph (39.26 km/h) |
| 30 mph (48.28 km/h) | 29.27 mph (47.11 km/h) |
| 35 mph (56.33 km/h) | 34.15 mph (54.96 km/h) |
| 40 mph (64.37 km/h) | 39.03 mph (62.82 km/h) |
| 45 mph (72.42 km/h) | 43.91 mph (70.67 km/h) |
| 50 mph (80.47 km/h) | 48.79 mph (78.52 km/h) |
| 55 mph (88.51 km/h) | 53.67 mph (86.37 km/h) |
| 60 mph (96.56 km/h) | 58.55 mph (94.23 km/h) |
| 65 mph (104.61 km/h) | 63.43 mph (102.08 km/h) |
| 70 mph (112.65 km/h) | 68.31 mph (109.93 km/h) |
| 75 mph (120.7 km/h) | 73.19 mph (117.78 km/h) |
| 80 mph (128.75 km/h) | 78.06 mph (125.63 km/h) |
| 85 mph (136.79 km/h) | 82.94 mph (133.49 km/h) |
| 90 mph (144.84 km/h) | 87.82 mph (141.34 km/h) |
| 95 mph (152.89 km/h) | 92.7 mph (149.19 km/h) |
| 100 mph (160.93 km/h) | 97.58 mph (157.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1959 | 2275 | 2450 | 2559 | 2675 | 2759 | 2850 | 2959 | 3109 | 3259 | 3425 | 3559 | 3800 | 4067 | 4276 | 4409 | 4484 | 4759 | 5142 | 5976 |
Better Fuel Economy Factory Ratios Increased Power
