Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/90-12 | 130/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.5 (520.8) | 20.17 (512.2) | -0.34 (-8.6) -1.7% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 64.42 (1636.14) | 63.35 (1609.12) | -1.06 (-27.02) -1.7% |
| Sidewall Height inches (mm) | 4.25 (108) | 3.58 (91) | -0.67 (-17) -15.7% |
| Revolutions per mile (km) | 983.62 (611.19) | 1000.14 (621.46) | 16.52 (10.26) 1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.67 mph (31.66 km/h) |
| 25 mph (40.23 km/h) | 24.59 mph (39.57 km/h) |
| 30 mph (48.28 km/h) | 29.5 mph (47.48 km/h) |
| 35 mph (56.33 km/h) | 34.42 mph (55.4 km/h) |
| 40 mph (64.37 km/h) | 39.34 mph (63.31 km/h) |
| 45 mph (72.42 km/h) | 44.26 mph (71.22 km/h) |
| 50 mph (80.47 km/h) | 49.17 mph (79.14 km/h) |
| 55 mph (88.51 km/h) | 54.09 mph (87.05 km/h) |
| 60 mph (96.56 km/h) | 59.01 mph (94.97 km/h) |
| 65 mph (104.61 km/h) | 63.93 mph (102.88 km/h) |
| 70 mph (112.65 km/h) | 68.84 mph (110.79 km/h) |
| 75 mph (120.7 km/h) | 73.76 mph (118.71 km/h) |
| 80 mph (128.75 km/h) | 78.68 mph (126.62 km/h) |
| 85 mph (136.79 km/h) | 83.6 mph (134.54 km/h) |
| 90 mph (144.84 km/h) | 88.51 mph (142.45 km/h) |
| 95 mph (152.89 km/h) | 93.43 mph (150.36 km/h) |
| 100 mph (160.93 km/h) | 98.35 mph (158.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
