Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-17 | 315/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.44 (620.8) | 36.84 (935.8) | 12.4 (315) 50.7% |
| Width inches (mm) | 5.31 (135) | 12.4 (315) | 7.09 (180) 133.3% |
| Circum. inches (mm) | 76.78 (1950.3) | 115.74 (2939.9) | 38.96 (989.6) 50.7% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 9.92 (252) | 6.2 (157.5) 166.7% |
| Revolutions per mile (km) | 825.18 (512.74) | 547.41 (340.15) | -277.76 (-172.59) -33.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 30.15 mph (48.52 km/h) |
| 25 mph (40.23 km/h) | 37.69 mph (60.65 km/h) |
| 30 mph (48.28 km/h) | 45.22 mph (72.78 km/h) |
| 35 mph (56.33 km/h) | 52.76 mph (84.91 km/h) |
| 40 mph (64.37 km/h) | 60.3 mph (97.04 km/h) |
| 45 mph (72.42 km/h) | 67.83 mph (109.17 km/h) |
| 50 mph (80.47 km/h) | 75.37 mph (121.3 km/h) |
| 55 mph (88.51 km/h) | 82.91 mph (133.43 km/h) |
| 60 mph (96.56 km/h) | 90.44 mph (145.56 km/h) |
| 65 mph (104.61 km/h) | 97.98 mph (157.69 km/h) |
| 70 mph (112.65 km/h) | 105.52 mph (169.82 km/h) |
| 75 mph (120.7 km/h) | 113.06 mph (181.95 km/h) |
| 80 mph (128.75 km/h) | 120.59 mph (194.08 km/h) |
| 85 mph (136.79 km/h) | 128.13 mph (206.21 km/h) |
| 90 mph (144.84 km/h) | 135.67 mph (218.34 km/h) |
| 95 mph (152.89 km/h) | 143.2 mph (230.46 km/h) |
| 100 mph (160.93 km/h) | 150.74 mph (242.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1393 | 1618 | 1743 | 1820 | 1903 | 1962 | 2027 | 2104 | 2211 | 2318 | 2436 | 2531 | 2703 | 2893 | 3041 | 3136 | 3189 | 3385 | 3658 | 4250 |
Better Fuel Economy Factory Ratios Increased Power
