Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/90-12 | 130/100-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.5 (520.8) | 26.24 (666.4) | 5.73 (145.6) 28% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 64.42 (1636.14) | 82.42 (2093.56) | 18.01 (457.42) 28% |
| Sidewall Height inches (mm) | 4.25 (108) | 5.12 (130) | 0.87 (22) 20.4% |
| Revolutions per mile (km) | 983.62 (611.19) | 768.71 (477.65) | -214.91 (-133.54) -21.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.59 mph (41.19 km/h) |
| 25 mph (40.23 km/h) | 31.99 mph (51.48 km/h) |
| 30 mph (48.28 km/h) | 38.39 mph (61.78 km/h) |
| 35 mph (56.33 km/h) | 44.78 mph (72.07 km/h) |
| 40 mph (64.37 km/h) | 51.18 mph (82.37 km/h) |
| 45 mph (72.42 km/h) | 57.58 mph (92.67 km/h) |
| 50 mph (80.47 km/h) | 63.98 mph (102.96 km/h) |
| 55 mph (88.51 km/h) | 70.38 mph (113.26 km/h) |
| 60 mph (96.56 km/h) | 76.77 mph (123.56 km/h) |
| 65 mph (104.61 km/h) | 83.17 mph (133.85 km/h) |
| 70 mph (112.65 km/h) | 89.57 mph (144.15 km/h) |
| 75 mph (120.7 km/h) | 95.97 mph (154.45 km/h) |
| 80 mph (128.75 km/h) | 102.37 mph (164.74 km/h) |
| 85 mph (136.79 km/h) | 108.76 mph (175.04 km/h) |
| 90 mph (144.84 km/h) | 115.16 mph (185.33 km/h) |
| 95 mph (152.89 km/h) | 121.56 mph (195.63 km/h) |
| 100 mph (160.93 km/h) | 127.96 mph (205.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1956 | 2273 | 2447 | 2556 | 2672 | 2755 | 2847 | 2955 | 3105 | 3255 | 3421 | 3555 | 3796 | 4062 | 4270 | 4404 | 4479 | 4753 | 5136 | 5969 |
Better Fuel Economy Factory Ratios Increased Power
