Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 315/100-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 39.8 (1011) | 14.15 (359.4) 55.2% |
| Width inches (mm) | 6.5 (165) | 12.4 (315) | 5.91 (150) 90.9% |
| Circum. inches (mm) | 80.59 (2047.06) | 125.05 (3176.15) | 44.45 (1129.09) 55.2% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 12.4 (315) | 7.07 (179.7) 132.8% |
| Revolutions per mile (km) | 786.17 (488.5) | 506.7 (314.85) | -279.48 (-173.66) -35.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 31.03 mph (49.94 km/h) |
| 25 mph (40.23 km/h) | 38.79 mph (62.43 km/h) |
| 30 mph (48.28 km/h) | 46.55 mph (74.91 km/h) |
| 35 mph (56.33 km/h) | 54.3 mph (87.4 km/h) |
| 40 mph (64.37 km/h) | 62.06 mph (99.88 km/h) |
| 45 mph (72.42 km/h) | 69.82 mph (112.37 km/h) |
| 50 mph (80.47 km/h) | 77.58 mph (124.85 km/h) |
| 55 mph (88.51 km/h) | 85.34 mph (137.34 km/h) |
| 60 mph (96.56 km/h) | 93.09 mph (149.82 km/h) |
| 65 mph (104.61 km/h) | 100.85 mph (162.31 km/h) |
| 70 mph (112.65 km/h) | 108.61 mph (174.79 km/h) |
| 75 mph (120.7 km/h) | 116.37 mph (187.28 km/h) |
| 80 mph (128.75 km/h) | 124.13 mph (199.76 km/h) |
| 85 mph (136.79 km/h) | 131.88 mph (212.25 km/h) |
| 90 mph (144.84 km/h) | 139.64 mph (224.73 km/h) |
| 95 mph (152.89 km/h) | 147.4 mph (237.22 km/h) |
| 100 mph (160.93 km/h) | 155.16 mph (249.7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1289 | 1498 | 1613 | 1685 | 1761 | 1816 | 1877 | 1948 | 2047 | 2145 | 2255 | 2343 | 2502 | 2678 | 2815 | 2903 | 2952 | 3133 | 3385 | 3934 |
Better Fuel Economy Factory Ratios Increased Power
