Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-15 | 170/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.19 (589) | 25.71 (653) | 2.52 (64) 10.9% |
| Width inches (mm) | 5.12 (130) | 6.69 (170) | 1.57 (40) 30.8% |
| Circum. inches (mm) | 72.85 (1850.4) | 80.77 (2051.46) | 7.92 (201.06) 10.9% |
| Sidewall Height inches (mm) | 4.09 (104) | 5.35 (136) | 1.26 (32) 30.8% |
| Revolutions per mile (km) | 869.73 (540.42) | 784.49 (487.46) | -85.24 (-52.97) -9.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.17 mph (35.68 km/h) |
| 25 mph (40.23 km/h) | 27.72 mph (44.61 km/h) |
| 30 mph (48.28 km/h) | 33.26 mph (53.53 km/h) |
| 35 mph (56.33 km/h) | 38.8 mph (62.45 km/h) |
| 40 mph (64.37 km/h) | 44.35 mph (71.37 km/h) |
| 45 mph (72.42 km/h) | 49.89 mph (80.29 km/h) |
| 50 mph (80.47 km/h) | 55.43 mph (89.21 km/h) |
| 55 mph (88.51 km/h) | 60.98 mph (98.13 km/h) |
| 60 mph (96.56 km/h) | 66.52 mph (107.05 km/h) |
| 65 mph (104.61 km/h) | 72.06 mph (115.97 km/h) |
| 70 mph (112.65 km/h) | 77.61 mph (124.9 km/h) |
| 75 mph (120.7 km/h) | 83.15 mph (133.82 km/h) |
| 80 mph (128.75 km/h) | 88.69 mph (142.74 km/h) |
| 85 mph (136.79 km/h) | 94.24 mph (151.66 km/h) |
| 90 mph (144.84 km/h) | 99.78 mph (160.58 km/h) |
| 95 mph (152.89 km/h) | 105.32 mph (169.5 km/h) |
| 100 mph (160.93 km/h) | 110.87 mph (178.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | 2319 | 2498 | 2608 | 2727 | 2812 | 2905 | 3016 | 3169 | 3322 | 3492 | 3627 | 3874 | 4146 | 4358 | 4494 | 4570 | 4851 | 5242 | 6091 |
Better Fuel Economy Factory Ratios Increased Power
