Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-17 | 305/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.3) | 26.61 (675.8) | 1.2 (30.5) 4.7% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 79.81 (2027.27) | 83.59 (2123.09) | 3.77 (95.82) 4.7% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 4.8 (122) | 0.6 (15.25) 14.3% |
| Revolutions per mile (km) | 793.85 (493.27) | 758.02 (471.01) | -35.83 (-22.26) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.71 km/h) |
| 25 mph (40.23 km/h) | 26.18 mph (42.14 km/h) |
| 30 mph (48.28 km/h) | 31.42 mph (50.56 km/h) |
| 35 mph (56.33 km/h) | 36.65 mph (58.99 km/h) |
| 40 mph (64.37 km/h) | 41.89 mph (67.42 km/h) |
| 45 mph (72.42 km/h) | 47.13 mph (75.84 km/h) |
| 50 mph (80.47 km/h) | 52.36 mph (84.27 km/h) |
| 55 mph (88.51 km/h) | 57.6 mph (92.7 km/h) |
| 60 mph (96.56 km/h) | 62.84 mph (101.12 km/h) |
| 65 mph (104.61 km/h) | 68.07 mph (109.55 km/h) |
| 70 mph (112.65 km/h) | 73.31 mph (117.98 km/h) |
| 75 mph (120.7 km/h) | 78.54 mph (126.41 km/h) |
| 80 mph (128.75 km/h) | 83.78 mph (134.83 km/h) |
| 85 mph (136.79 km/h) | 89.02 mph (143.26 km/h) |
| 90 mph (144.84 km/h) | 94.25 mph (151.69 km/h) |
| 95 mph (152.89 km/h) | 99.49 mph (160.11 km/h) |
| 100 mph (160.93 km/h) | 104.73 mph (168.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1929 | 2241 | 2413 | 2520 | 2635 | 2717 | 2807 | 2914 | 3062 | 3210 | 3374 | 3505 | 3743 | 4006 | 4211 | 4342 | 4416 | 4687 | 5065 | 5886 |
Better Fuel Economy Factory Ratios Increased Power
