Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-15 | 315/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.68 (601.5) | 28.68 (728.5) | 5 (127) 21.1% |
| Width inches (mm) | 9.65 (245) | 12.4 (315) | 2.76 (70) 28.6% |
| Circum. inches (mm) | 74.4 (1889.67) | 90.1 (2288.65) | 15.71 (398.98) 21.1% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 4.34 (110.25) | 0 (0) 0% |
| Revolutions per mile (km) | 851.65 (529.19) | 703.18 (436.94) | -148.47 (-92.25) -17.4% |
315/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.22 mph (38.98 km/h) |
| 25 mph (40.23 km/h) | 30.28 mph (48.73 km/h) |
| 30 mph (48.28 km/h) | 36.33 mph (58.47 km/h) |
| 35 mph (56.33 km/h) | 42.39 mph (68.22 km/h) |
| 40 mph (64.37 km/h) | 48.45 mph (77.97 km/h) |
| 45 mph (72.42 km/h) | 54.5 mph (87.71 km/h) |
| 50 mph (80.47 km/h) | 60.56 mph (97.46 km/h) |
| 55 mph (88.51 km/h) | 66.61 mph (107.2 km/h) |
| 60 mph (96.56 km/h) | 72.67 mph (116.95 km/h) |
| 65 mph (104.61 km/h) | 78.72 mph (126.69 km/h) |
| 70 mph (112.65 km/h) | 84.78 mph (136.44 km/h) |
| 75 mph (120.7 km/h) | 90.84 mph (146.19 km/h) |
| 80 mph (128.75 km/h) | 96.89 mph (155.93 km/h) |
| 85 mph (136.79 km/h) | 102.95 mph (165.68 km/h) |
| 90 mph (144.84 km/h) | 109 mph (175.42 km/h) |
| 95 mph (152.89 km/h) | 115.06 mph (185.17 km/h) |
| 100 mph (160.93 km/h) | 121.11 mph (194.91 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
