Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/80-16 | 345/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.84 (910.4) | 37.37 (949.3) | 1.53 (38.9) 4.3% |
| Width inches (mm) | 12.4 (315) | 13.58 (345) | 1.18 (30) 9.5% |
| Circum. inches (mm) | 112.6 (2860.11) | 117.41 (2982.31) | 4.81 (122.21) 4.3% |
| Sidewall Height inches (mm) | 9.92 (252) | 10.19 (258.75) | 0.27 (6.75) 2.7% |
| Revolutions per mile (km) | 562.69 (349.64) | 539.63 (335.31) | -23.06 (-14.33) -4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.85 mph (33.56 km/h) |
| 25 mph (40.23 km/h) | 26.07 mph (41.95 km/h) |
| 30 mph (48.28 km/h) | 31.28 mph (50.34 km/h) |
| 35 mph (56.33 km/h) | 36.5 mph (58.73 km/h) |
| 40 mph (64.37 km/h) | 41.71 mph (67.12 km/h) |
| 45 mph (72.42 km/h) | 46.92 mph (75.52 km/h) |
| 50 mph (80.47 km/h) | 52.14 mph (83.91 km/h) |
| 55 mph (88.51 km/h) | 57.35 mph (92.3 km/h) |
| 60 mph (96.56 km/h) | 62.56 mph (100.69 km/h) |
| 65 mph (104.61 km/h) | 67.78 mph (109.08 km/h) |
| 70 mph (112.65 km/h) | 72.99 mph (117.47 km/h) |
| 75 mph (120.7 km/h) | 78.2 mph (125.86 km/h) |
| 80 mph (128.75 km/h) | 83.42 mph (134.25 km/h) |
| 85 mph (136.79 km/h) | 88.63 mph (142.64 km/h) |
| 90 mph (144.84 km/h) | 93.85 mph (151.03 km/h) |
| 95 mph (152.89 km/h) | 99.06 mph (159.42 km/h) |
| 100 mph (160.93 km/h) | 104.27 mph (167.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1373 | 1595 | 1718 | 1794 | 1876 | 1934 | 1999 | 2074 | 2180 | 2285 | 2402 | 2495 | 2665 | 2852 | 2998 | 3091 | 3144 | 3337 | 3606 | 4190 |
Better Fuel Economy Factory Ratios Increased Power
