Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-15 | 155/66-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.44 (570) | 23.06 (585.6) | 0.61 (15.6) 2.7% |
| Width inches (mm) | 5.31 (135) | 6.1 (155) | 0.79 (20) 14.8% |
| Circum. inches (mm) | 70.5 (1790.71) | 72.43 (1839.72) | 1.93 (49.01) 2.7% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 4.03 (102.3) | 0.31 (7.8) 8.3% |
| Revolutions per mile (km) | 898.72 (558.44) | 874.78 (543.56) | -23.94 (-14.88) -2.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.55 mph (33.07 km/h) |
| 25 mph (40.23 km/h) | 25.68 mph (41.33 km/h) |
| 30 mph (48.28 km/h) | 30.82 mph (49.6 km/h) |
| 35 mph (56.33 km/h) | 35.96 mph (57.87 km/h) |
| 40 mph (64.37 km/h) | 41.09 mph (66.14 km/h) |
| 45 mph (72.42 km/h) | 46.23 mph (74.4 km/h) |
| 50 mph (80.47 km/h) | 51.37 mph (82.67 km/h) |
| 55 mph (88.51 km/h) | 56.51 mph (90.94 km/h) |
| 60 mph (96.56 km/h) | 61.64 mph (99.2 km/h) |
| 65 mph (104.61 km/h) | 66.78 mph (107.47 km/h) |
| 70 mph (112.65 km/h) | 71.92 mph (115.74 km/h) |
| 75 mph (120.7 km/h) | 77.05 mph (124 km/h) |
| 80 mph (128.75 km/h) | 82.19 mph (132.27 km/h) |
| 85 mph (136.79 km/h) | 87.33 mph (140.54 km/h) |
| 90 mph (144.84 km/h) | 92.46 mph (148.81 km/h) |
| 95 mph (152.89 km/h) | 97.6 mph (157.07 km/h) |
| 100 mph (160.93 km/h) | 102.74 mph (165.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2226 | 2586 | 2785 | 2908 | 3041 | 3136 | 3240 | 3363 | 3533 | 3704 | 3893 | 4045 | 4320 | 4623 | 4860 | 5011 | 5096 | 5409 | 5845 | 6792 |
Better Fuel Economy Factory Ratios Increased Power
