Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-30 | 360/40-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.44 (951) | 35.34 (897.6) | -2.1 (-53.4) -5.6% |
| Width inches (mm) | 12.4 (315) | 14.17 (360) | 1.77 (45) 14.3% |
| Circum. inches (mm) | 117.62 (2987.65) | 111.02 (2819.89) | -6.6 (-167.76) -5.6% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 5.67 (144) | 1.95 (49.5) 52.4% |
| Revolutions per mile (km) | 538.66 (334.71) | 570.71 (354.62) | 32.05 (19.91) 5.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.88 mph (30.38 km/h) |
| 25 mph (40.23 km/h) | 23.6 mph (37.97 km/h) |
| 30 mph (48.28 km/h) | 28.32 mph (45.57 km/h) |
| 35 mph (56.33 km/h) | 33.03 mph (53.16 km/h) |
| 40 mph (64.37 km/h) | 37.75 mph (60.76 km/h) |
| 45 mph (72.42 km/h) | 42.47 mph (68.35 km/h) |
| 50 mph (80.47 km/h) | 47.19 mph (75.95 km/h) |
| 55 mph (88.51 km/h) | 51.91 mph (83.54 km/h) |
| 60 mph (96.56 km/h) | 56.63 mph (91.14 km/h) |
| 65 mph (104.61 km/h) | 61.35 mph (98.73 km/h) |
| 70 mph (112.65 km/h) | 66.07 mph (106.33 km/h) |
| 75 mph (120.7 km/h) | 70.79 mph (113.92 km/h) |
| 80 mph (128.75 km/h) | 75.51 mph (121.52 km/h) |
| 85 mph (136.79 km/h) | 80.23 mph (129.11 km/h) |
| 90 mph (144.84 km/h) | 84.95 mph (136.71 km/h) |
| 95 mph (152.89 km/h) | 89.67 mph (144.3 km/h) |
| 100 mph (160.93 km/h) | 94.38 mph (151.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1452 | 1687 | 1817 | 1897 | 1984 | 2046 | 2114 | 2194 | 2305 | 2416 | 2540 | 2639 | 2818 | 3016 | 3170 | 3269 | 3325 | 3529 | 3813 | 4431 |
Better Fuel Economy Factory Ratios Increased Power
