Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 330/50-20 | 33.5/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.99 (838) | 33.52 (851.44) | 0.53 (13.44) 1.6% |
| Width inches (mm) | 12.99 (330) | 12.52 (318) | -0.47 (-12) -3.6% |
| Circum. inches (mm) | 103.65 (2632.65) | 105.31 (2674.88) | 1.66 (42.22) 1.6% |
| Sidewall Height inches (mm) | 6.5 (165) | 6.76 (171.72) | 0.26 (6.72) 4.1% |
| Revolutions per mile (km) | 611.3 (379.84) | 601.65 (373.85) | -9.65 (-6) -1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.32 mph (32.7 km/h) |
| 25 mph (40.23 km/h) | 25.4 mph (40.88 km/h) |
| 30 mph (48.28 km/h) | 30.48 mph (49.05 km/h) |
| 35 mph (56.33 km/h) | 35.56 mph (57.23 km/h) |
| 40 mph (64.37 km/h) | 40.64 mph (65.41 km/h) |
| 45 mph (72.42 km/h) | 45.72 mph (73.58 km/h) |
| 50 mph (80.47 km/h) | 50.8 mph (81.76 km/h) |
| 55 mph (88.51 km/h) | 55.88 mph (89.93 km/h) |
| 60 mph (96.56 km/h) | 60.96 mph (98.11 km/h) |
| 65 mph (104.61 km/h) | 66.04 mph (106.29 km/h) |
| 70 mph (112.65 km/h) | 71.12 mph (114.46 km/h) |
| 75 mph (120.7 km/h) | 76.2 mph (122.64 km/h) |
| 80 mph (128.75 km/h) | 81.28 mph (130.81 km/h) |
| 85 mph (136.79 km/h) | 86.36 mph (138.99 km/h) |
| 90 mph (144.84 km/h) | 91.44 mph (147.16 km/h) |
| 95 mph (152.89 km/h) | 96.52 mph (155.34 km/h) |
| 100 mph (160.93 km/h) | 101.6 mph (163.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1531 | 1779 | 1915 | 2000 | 2091 | 2157 | 2228 | 2313 | 2430 | 2547 | 2678 | 2782 | 2971 | 3179 | 3342 | 3447 | 3505 | 3720 | 4020 | 4671 |
Better Fuel Economy Factory Ratios Increased Power
