Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/90-12 | 130/90-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.5 (520.8) | 22.21 (564.2) | 1.71 (43.4) 8.3% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 64.42 (1636.14) | 69.78 (1772.49) | 5.37 (136.35) 8.3% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.61 (117) | 0.35 (9) 8.3% |
| Revolutions per mile (km) | 983.62 (611.19) | 907.96 (564.18) | -75.66 (-47.01) -7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.67 mph (34.87 km/h) |
| 25 mph (40.23 km/h) | 27.08 mph (43.59 km/h) |
| 30 mph (48.28 km/h) | 32.5 mph (52.3 km/h) |
| 35 mph (56.33 km/h) | 37.92 mph (61.02 km/h) |
| 40 mph (64.37 km/h) | 43.33 mph (69.74 km/h) |
| 45 mph (72.42 km/h) | 48.75 mph (78.46 km/h) |
| 50 mph (80.47 km/h) | 54.17 mph (87.17 km/h) |
| 55 mph (88.51 km/h) | 59.58 mph (95.89 km/h) |
| 60 mph (96.56 km/h) | 65 mph (104.61 km/h) |
| 65 mph (104.61 km/h) | 70.42 mph (113.32 km/h) |
| 70 mph (112.65 km/h) | 75.83 mph (122.04 km/h) |
| 75 mph (120.7 km/h) | 81.25 mph (130.76 km/h) |
| 80 mph (128.75 km/h) | 86.67 mph (139.48 km/h) |
| 85 mph (136.79 km/h) | 92.08 mph (148.19 km/h) |
| 90 mph (144.84 km/h) | 97.5 mph (156.91 km/h) |
| 95 mph (152.89 km/h) | 102.92 mph (165.63 km/h) |
| 100 mph (160.93 km/h) | 108.33 mph (174.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2311 | 2684 | 2891 | 3019 | 3156 | 3254 | 3363 | 3490 | 3667 | 3844 | 4041 | 4198 | 4484 | 4798 | 5044 | 5201 | 5290 | 5614 | 6067 | 7050 |
Better Fuel Economy Factory Ratios Increased Power
