Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-19 | 305/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.41 (696.1) | 28.61 (726.6) | 1.2 (30.5) 4.4% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 86.1 (2186.86) | 89.87 (2282.68) | 3.77 (95.82) 4.4% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 4.8 (122) | 0.6 (15.25) 14.3% |
| Revolutions per mile (km) | 735.91 (457.28) | 705.02 (438.08) | -30.89 (-19.19) -4.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.6 km/h) |
| 25 mph (40.23 km/h) | 26.1 mph (42 km/h) |
| 30 mph (48.28 km/h) | 31.31 mph (50.4 km/h) |
| 35 mph (56.33 km/h) | 36.53 mph (58.8 km/h) |
| 40 mph (64.37 km/h) | 41.75 mph (67.19 km/h) |
| 45 mph (72.42 km/h) | 46.97 mph (75.59 km/h) |
| 50 mph (80.47 km/h) | 52.19 mph (83.99 km/h) |
| 55 mph (88.51 km/h) | 57.41 mph (92.39 km/h) |
| 60 mph (96.56 km/h) | 62.63 mph (100.79 km/h) |
| 65 mph (104.61 km/h) | 67.85 mph (109.19 km/h) |
| 70 mph (112.65 km/h) | 73.07 mph (117.59 km/h) |
| 75 mph (120.7 km/h) | 78.29 mph (125.99 km/h) |
| 80 mph (128.75 km/h) | 83.51 mph (134.39 km/h) |
| 85 mph (136.79 km/h) | 88.72 mph (142.79 km/h) |
| 90 mph (144.84 km/h) | 93.94 mph (151.19 km/h) |
| 95 mph (152.89 km/h) | 99.16 mph (159.59 km/h) |
| 100 mph (160.93 km/h) | 104.38 mph (167.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1794 | 2084 | 2245 | 2344 | 2451 | 2527 | 2611 | 2710 | 2848 | 2985 | 3138 | 3260 | 3481 | 3726 | 3917 | 4039 | 4107 | 4359 | 4711 | 5474 |
Better Fuel Economy Factory Ratios Increased Power
