Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 25/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 25.02 (635.4) | 0.45 (11.4) 1.8% |
| Width inches (mm) | 5.31 (135) | 12.52 (318) | 7.2 (183) 135.6% |
| Circum. inches (mm) | 77.18 (1960.35) | 78.59 (1996.17) | 1.41 (35.81) 1.8% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 5.01 (127.2) | 0.22 (5.7) 4.7% |
| Revolutions per mile (km) | 820.95 (510.11) | 806.22 (500.96) | -14.73 (-9.15) -1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.37 mph (32.77 km/h) |
| 25 mph (40.23 km/h) | 25.46 mph (40.97 km/h) |
| 30 mph (48.28 km/h) | 30.55 mph (49.16 km/h) |
| 35 mph (56.33 km/h) | 35.64 mph (57.36 km/h) |
| 40 mph (64.37 km/h) | 40.73 mph (65.55 km/h) |
| 45 mph (72.42 km/h) | 45.82 mph (73.74 km/h) |
| 50 mph (80.47 km/h) | 50.91 mph (81.94 km/h) |
| 55 mph (88.51 km/h) | 56 mph (90.13 km/h) |
| 60 mph (96.56 km/h) | 61.1 mph (98.32 km/h) |
| 65 mph (104.61 km/h) | 66.19 mph (106.52 km/h) |
| 70 mph (112.65 km/h) | 71.28 mph (114.71 km/h) |
| 75 mph (120.7 km/h) | 76.37 mph (122.91 km/h) |
| 80 mph (128.75 km/h) | 81.46 mph (131.1 km/h) |
| 85 mph (136.79 km/h) | 86.55 mph (139.29 km/h) |
| 90 mph (144.84 km/h) | 91.64 mph (147.49 km/h) |
| 95 mph (152.89 km/h) | 96.74 mph (155.68 km/h) |
| 100 mph (160.93 km/h) | 101.83 mph (163.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2052 | 2383 | 2567 | 2680 | 2802 | 2890 | 2986 | 3099 | 3256 | 3414 | 3588 | 3728 | 3981 | 4260 | 4479 | 4618 | 4697 | 4985 | 5387 | 6260 |
Better Fuel Economy Factory Ratios Increased Power
