Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/70-16 | 315/40-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.88 (784.4) | 25.92 (658.4) | -4.96 (-126) -16.1% |
| Width inches (mm) | 10.63 (270) | 12.4 (315) | 1.77 (45) 16.7% |
| Circum. inches (mm) | 97.02 (2464.27) | 81.43 (2068.42) | -15.58 (-395.84) -16.1% |
| Sidewall Height inches (mm) | 7.44 (189) | 4.96 (126) | -2.48 (-63) -33.3% |
| Revolutions per mile (km) | 653.07 (405.8) | 778.05 (483.46) | 124.98 (77.66) 19.1% |
315/40-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.79 mph (27.02 km/h) |
| 25 mph (40.23 km/h) | 20.98 mph (33.77 km/h) |
| 30 mph (48.28 km/h) | 25.18 mph (40.53 km/h) |
| 35 mph (56.33 km/h) | 29.38 mph (47.28 km/h) |
| 40 mph (64.37 km/h) | 33.57 mph (54.03 km/h) |
| 45 mph (72.42 km/h) | 37.77 mph (60.79 km/h) |
| 50 mph (80.47 km/h) | 41.97 mph (67.54 km/h) |
| 55 mph (88.51 km/h) | 46.17 mph (74.3 km/h) |
| 60 mph (96.56 km/h) | 50.36 mph (81.05 km/h) |
| 65 mph (104.61 km/h) | 54.56 mph (87.8 km/h) |
| 70 mph (112.65 km/h) | 58.76 mph (94.56 km/h) |
| 75 mph (120.7 km/h) | 62.95 mph (101.31 km/h) |
| 80 mph (128.75 km/h) | 67.15 mph (108.07 km/h) |
| 85 mph (136.79 km/h) | 71.35 mph (114.82 km/h) |
| 90 mph (144.84 km/h) | 75.54 mph (121.58 km/h) |
| 95 mph (152.89 km/h) | 79.74 mph (128.33 km/h) |
| 100 mph (160.93 km/h) | 83.94 mph (135.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | 2300 | 2477 | 2587 | 2705 | 2789 | 2882 | 2991 | 3143 | 3294 | 3463 | 3598 | 3842 | 4112 | 4322 | 4457 | 4533 | 4811 | 5199 | 6041 |
Better Fuel Economy Factory Ratios Increased Power
