Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/65-17 | 315/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.49 (698.3) | 33.12 (841.3) | 5.63 (143) 20.5% |
| Width inches (mm) | 8.07 (205) | 12.4 (315) | 4.33 (110) 53.7% |
| Circum. inches (mm) | 86.37 (2193.77) | 104.06 (2643.02) | 17.69 (449.25) 20.5% |
| Sidewall Height inches (mm) | 5.25 (133.25) | 8.06 (204.75) | 2.81 (71.5) 53.7% |
| Revolutions per mile (km) | 733.6 (455.83) | 608.9 (378.35) | -124.69 (-77.48) -17% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.1 mph (38.78 km/h) |
| 25 mph (40.23 km/h) | 30.12 mph (48.47 km/h) |
| 30 mph (48.28 km/h) | 36.14 mph (58.17 km/h) |
| 35 mph (56.33 km/h) | 42.17 mph (67.86 km/h) |
| 40 mph (64.37 km/h) | 48.19 mph (77.56 km/h) |
| 45 mph (72.42 km/h) | 54.22 mph (87.25 km/h) |
| 50 mph (80.47 km/h) | 60.24 mph (96.95 km/h) |
| 55 mph (88.51 km/h) | 66.26 mph (106.64 km/h) |
| 60 mph (96.56 km/h) | 72.29 mph (116.33 km/h) |
| 65 mph (104.61 km/h) | 78.31 mph (126.03 km/h) |
| 70 mph (112.65 km/h) | 84.33 mph (135.72 km/h) |
| 75 mph (120.7 km/h) | 90.36 mph (145.42 km/h) |
| 80 mph (128.75 km/h) | 96.38 mph (155.11 km/h) |
| 85 mph (136.79 km/h) | 102.41 mph (164.81 km/h) |
| 90 mph (144.84 km/h) | 108.43 mph (174.5 km/h) |
| 95 mph (152.89 km/h) | 114.45 mph (184.2 km/h) |
| 100 mph (160.93 km/h) | 120.48 mph (193.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1550 | 1800 | 1939 | 2024 | 2117 | 2183 | 2255 | 2341 | 2459 | 2578 | 2710 | 2816 | 3007 | 3218 | 3383 | 3488 | 3547 | 3765 | 4068 | 4728 |
Better Fuel Economy Factory Ratios Increased Power
