Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 125/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 20.87 (530.2) | -3.69 (-93.8) -15% |
| Width inches (mm) | 5.31 (135) | 4.92 (125) | -0.39 (-10) -7.4% |
| Circum. inches (mm) | 77.18 (1960.35) | 65.58 (1665.67) | -11.6 (-294.68) -15% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 3.94 (100) | -0.85 (-21.5) -17.7% |
| Revolutions per mile (km) | 820.95 (510.11) | 966.18 (600.36) | 145.24 (90.25) 17.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.99 mph (27.35 km/h) |
| 25 mph (40.23 km/h) | 21.24 mph (34.19 km/h) |
| 30 mph (48.28 km/h) | 25.49 mph (41.02 km/h) |
| 35 mph (56.33 km/h) | 29.74 mph (47.86 km/h) |
| 40 mph (64.37 km/h) | 33.99 mph (54.7 km/h) |
| 45 mph (72.42 km/h) | 38.24 mph (61.53 km/h) |
| 50 mph (80.47 km/h) | 42.48 mph (68.37 km/h) |
| 55 mph (88.51 km/h) | 46.73 mph (75.21 km/h) |
| 60 mph (96.56 km/h) | 50.98 mph (82.05 km/h) |
| 65 mph (104.61 km/h) | 55.23 mph (88.88 km/h) |
| 70 mph (112.65 km/h) | 59.48 mph (95.72 km/h) |
| 75 mph (120.7 km/h) | 63.73 mph (102.56 km/h) |
| 80 mph (128.75 km/h) | 67.97 mph (109.39 km/h) |
| 85 mph (136.79 km/h) | 72.22 mph (116.23 km/h) |
| 90 mph (144.84 km/h) | 76.47 mph (123.07 km/h) |
| 95 mph (152.89 km/h) | 80.72 mph (129.91 km/h) |
| 100 mph (160.93 km/h) | 84.97 mph (136.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
