Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/65-17 | 310/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.14 (587.8) | 32.87 (834.8) | 9.72 (247) 42% |
| Width inches (mm) | 4.72 (120) | 12.2 (310) | 7.48 (190) 158.3% |
| Circum. inches (mm) | 72.7 (1846.63) | 103.25 (2622.6) | 30.55 (775.97) 42% |
| Sidewall Height inches (mm) | 3.07 (78) | 7.93 (201.5) | 4.86 (123.5) 158.3% |
| Revolutions per mile (km) | 871.5 (541.53) | 613.64 (381.3) | -257.86 (-160.23) -29.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.4 mph (45.71 km/h) |
| 25 mph (40.23 km/h) | 35.51 mph (57.14 km/h) |
| 30 mph (48.28 km/h) | 42.61 mph (68.57 km/h) |
| 35 mph (56.33 km/h) | 49.71 mph (80 km/h) |
| 40 mph (64.37 km/h) | 56.81 mph (91.42 km/h) |
| 45 mph (72.42 km/h) | 63.91 mph (102.85 km/h) |
| 50 mph (80.47 km/h) | 71.01 mph (114.28 km/h) |
| 55 mph (88.51 km/h) | 78.11 mph (125.71 km/h) |
| 60 mph (96.56 km/h) | 85.21 mph (137.14 km/h) |
| 65 mph (104.61 km/h) | 92.31 mph (148.56 km/h) |
| 70 mph (112.65 km/h) | 99.41 mph (159.99 km/h) |
| 75 mph (120.7 km/h) | 106.52 mph (171.42 km/h) |
| 80 mph (128.75 km/h) | 113.62 mph (182.85 km/h) |
| 85 mph (136.79 km/h) | 120.72 mph (194.28 km/h) |
| 90 mph (144.84 km/h) | 127.82 mph (205.71 km/h) |
| 95 mph (152.89 km/h) | 134.92 mph (217.13 km/h) |
| 100 mph (160.93 km/h) | 142.02 mph (228.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1562 | 1814 | 1954 | 2040 | 2133 | 2200 | 2273 | 2359 | 2479 | 2598 | 2731 | 2837 | 3030 | 3243 | 3409 | 3515 | 3575 | 3794 | 4100 | 4765 |
Better Fuel Economy Factory Ratios Increased Power
