Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/90-15 | 170/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.21 (615) | 25.71 (653) | 1.5 (38) 6.2% |
| Width inches (mm) | 5.12 (130) | 6.69 (170) | 1.57 (40) 30.8% |
| Circum. inches (mm) | 76.07 (1932.08) | 80.77 (2051.46) | 4.7 (119.38) 6.2% |
| Sidewall Height inches (mm) | 4.61 (117) | 5.35 (136) | 0.75 (19) 16.2% |
| Revolutions per mile (km) | 832.96 (517.58) | 784.49 (487.46) | -48.47 (-30.12) -5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.24 mph (34.18 km/h) |
| 25 mph (40.23 km/h) | 26.54 mph (42.72 km/h) |
| 30 mph (48.28 km/h) | 31.85 mph (51.26 km/h) |
| 35 mph (56.33 km/h) | 37.16 mph (59.81 km/h) |
| 40 mph (64.37 km/h) | 42.47 mph (68.35 km/h) |
| 45 mph (72.42 km/h) | 47.78 mph (76.9 km/h) |
| 50 mph (80.47 km/h) | 53.09 mph (85.44 km/h) |
| 55 mph (88.51 km/h) | 58.4 mph (93.98 km/h) |
| 60 mph (96.56 km/h) | 63.71 mph (102.53 km/h) |
| 65 mph (104.61 km/h) | 69.02 mph (111.07 km/h) |
| 70 mph (112.65 km/h) | 74.33 mph (119.62 km/h) |
| 75 mph (120.7 km/h) | 79.63 mph (128.16 km/h) |
| 80 mph (128.75 km/h) | 84.94 mph (136.7 km/h) |
| 85 mph (136.79 km/h) | 90.25 mph (145.25 km/h) |
| 90 mph (144.84 km/h) | 95.56 mph (153.79 km/h) |
| 95 mph (152.89 km/h) | 100.87 mph (162.33 km/h) |
| 100 mph (160.93 km/h) | 106.18 mph (170.88 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
