Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/30-20 | 315/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.44 (697) | 28.68 (728.5) | 1.24 (31.5) 4.5% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 86.21 (2189.69) | 90.1 (2288.65) | 3.9 (98.96) 4.5% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 4.34 (110.25) | 0.62 (15.75) 16.7% |
| Revolutions per mile (km) | 734.96 (456.68) | 703.18 (436.94) | -31.78 (-19.75) -4.3% |
315/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.9 mph (33.64 km/h) |
| 25 mph (40.23 km/h) | 26.13 mph (42.05 km/h) |
| 30 mph (48.28 km/h) | 31.36 mph (50.46 km/h) |
| 35 mph (56.33 km/h) | 36.58 mph (58.87 km/h) |
| 40 mph (64.37 km/h) | 41.81 mph (67.28 km/h) |
| 45 mph (72.42 km/h) | 47.03 mph (75.69 km/h) |
| 50 mph (80.47 km/h) | 52.26 mph (84.1 km/h) |
| 55 mph (88.51 km/h) | 57.49 mph (92.51 km/h) |
| 60 mph (96.56 km/h) | 62.71 mph (100.92 km/h) |
| 65 mph (104.61 km/h) | 67.94 mph (109.34 km/h) |
| 70 mph (112.65 km/h) | 73.16 mph (117.75 km/h) |
| 75 mph (120.7 km/h) | 78.39 mph (126.16 km/h) |
| 80 mph (128.75 km/h) | 83.62 mph (134.57 km/h) |
| 85 mph (136.79 km/h) | 88.84 mph (142.98 km/h) |
| 90 mph (144.84 km/h) | 94.07 mph (151.39 km/h) |
| 95 mph (152.89 km/h) | 99.29 mph (159.8 km/h) |
| 100 mph (160.93 km/h) | 104.52 mph (168.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1789 | 2079 | 2239 | 2338 | 2444 | 2520 | 2604 | 2703 | 2840 | 2977 | 3130 | 3252 | 3472 | 3716 | 3906 | 4028 | 4097 | 4348 | 4698 | 5460 |
Better Fuel Economy Factory Ratios Increased Power
