Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-19 | 320/70-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.61 (853.6) | 37.64 (956) | 4.03 (102.4) 12% |
| Width inches (mm) | 10.43 (265) | 12.6 (320) | 2.17 (55) 20.8% |
| Circum. inches (mm) | 105.58 (2681.66) | 118.24 (3003.36) | 12.67 (321.7) 12% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 8.82 (224) | 1.52 (38.5) 20.8% |
| Revolutions per mile (km) | 600.13 (372.9) | 535.85 (332.96) | -64.28 (-39.94) -10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.4 mph (36.05 km/h) |
| 25 mph (40.23 km/h) | 28 mph (45.06 km/h) |
| 30 mph (48.28 km/h) | 33.6 mph (54.07 km/h) |
| 35 mph (56.33 km/h) | 39.2 mph (63.08 km/h) |
| 40 mph (64.37 km/h) | 44.8 mph (72.1 km/h) |
| 45 mph (72.42 km/h) | 50.4 mph (81.11 km/h) |
| 50 mph (80.47 km/h) | 56 mph (90.12 km/h) |
| 55 mph (88.51 km/h) | 61.6 mph (99.13 km/h) |
| 60 mph (96.56 km/h) | 67.2 mph (108.14 km/h) |
| 65 mph (104.61 km/h) | 72.8 mph (117.16 km/h) |
| 70 mph (112.65 km/h) | 78.4 mph (126.17 km/h) |
| 75 mph (120.7 km/h) | 84 mph (135.18 km/h) |
| 80 mph (128.75 km/h) | 89.6 mph (144.19 km/h) |
| 85 mph (136.79 km/h) | 95.2 mph (153.2 km/h) |
| 90 mph (144.84 km/h) | 100.8 mph (162.22 km/h) |
| 95 mph (152.89 km/h) | 106.4 mph (171.23 km/h) |
| 100 mph (160.93 km/h) | 112 mph (180.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1364 | 1584 | 1706 | 1781 | 1863 | 1921 | 1985 | 2060 | 2164 | 2269 | 2385 | 2478 | 2646 | 2832 | 2977 | 3070 | 3122 | 3313 | 3580 | 4161 |
Better Fuel Economy Factory Ratios Increased Power
