Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/75-15 | 25.5/7.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.97 (583.5) | 25.53 (648.4) | 2.56 (64.9) 11.1% |
| Width inches (mm) | 5.31 (135) | 7.52 (191) | 2.2 (56) 41.5% |
| Circum. inches (mm) | 72.17 (1833.12) | 80.2 (2037.01) | 8.03 (203.89) 11.1% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.26 (133.7) | 1.28 (32.45) 32% |
| Revolutions per mile (km) | 877.93 (545.52) | 790.05 (490.91) | -87.87 (-54.6) -10% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.22 mph (35.77 km/h) |
| 25 mph (40.23 km/h) | 27.78 mph (44.71 km/h) |
| 30 mph (48.28 km/h) | 33.34 mph (53.65 km/h) |
| 35 mph (56.33 km/h) | 38.89 mph (62.59 km/h) |
| 40 mph (64.37 km/h) | 44.45 mph (71.53 km/h) |
| 45 mph (72.42 km/h) | 50.01 mph (80.48 km/h) |
| 50 mph (80.47 km/h) | 55.56 mph (89.42 km/h) |
| 55 mph (88.51 km/h) | 61.12 mph (98.36 km/h) |
| 60 mph (96.56 km/h) | 66.67 mph (107.3 km/h) |
| 65 mph (104.61 km/h) | 72.23 mph (116.24 km/h) |
| 70 mph (112.65 km/h) | 77.79 mph (125.18 km/h) |
| 75 mph (120.7 km/h) | 83.34 mph (134.13 km/h) |
| 80 mph (128.75 km/h) | 88.9 mph (143.07 km/h) |
| 85 mph (136.79 km/h) | 94.45 mph (152.01 km/h) |
| 90 mph (144.84 km/h) | 100.01 mph (160.95 km/h) |
| 95 mph (152.89 km/h) | 105.57 mph (169.89 km/h) |
| 100 mph (160.93 km/h) | 111.12 mph (178.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 | 2336 | 2515 | 2627 | 2746 | 2832 | 2926 | 3037 | 3191 | 3345 | 3516 | 3653 | 3901 | 4175 | 4389 | 4526 | 4603 | 4885 | 5279 | 6134 |
Better Fuel Economy Factory Ratios Increased Power
