Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/75-15 | 400/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.97 (583.5) | 27.6 (701) | 4.63 (117.5) 20.1% |
| Width inches (mm) | 5.31 (135) | 15.75 (400) | 10.43 (265) 196.3% |
| Circum. inches (mm) | 72.17 (1833.12) | 86.7 (2202.26) | 14.53 (369.14) 20.1% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 6.3 (160) | 2.31 (58.75) 58% |
| Revolutions per mile (km) | 877.93 (545.52) | 730.77 (454.08) | -147.16 (-91.44) -16.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.03 mph (38.67 km/h) |
| 25 mph (40.23 km/h) | 30.03 mph (48.34 km/h) |
| 30 mph (48.28 km/h) | 36.04 mph (58 km/h) |
| 35 mph (56.33 km/h) | 42.05 mph (67.67 km/h) |
| 40 mph (64.37 km/h) | 48.05 mph (77.34 km/h) |
| 45 mph (72.42 km/h) | 54.06 mph (87 km/h) |
| 50 mph (80.47 km/h) | 60.07 mph (96.67 km/h) |
| 55 mph (88.51 km/h) | 66.08 mph (106.34 km/h) |
| 60 mph (96.56 km/h) | 72.08 mph (116.01 km/h) |
| 65 mph (104.61 km/h) | 78.09 mph (125.67 km/h) |
| 70 mph (112.65 km/h) | 84.1 mph (135.34 km/h) |
| 75 mph (120.7 km/h) | 90.1 mph (145.01 km/h) |
| 80 mph (128.75 km/h) | 96.11 mph (154.67 km/h) |
| 85 mph (136.79 km/h) | 102.12 mph (164.34 km/h) |
| 90 mph (144.84 km/h) | 108.12 mph (174.01 km/h) |
| 95 mph (152.89 km/h) | 114.13 mph (183.68 km/h) |
| 100 mph (160.93 km/h) | 120.14 mph (193.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1860 | 2160 | 2327 | 2429 | 2540 | 2619 | 2706 | 2809 | 2952 | 3094 | 3252 | 3379 | 3609 | 3862 | 4060 | 4186 | 4257 | 4519 | 4883 | 5674 |
Better Fuel Economy Factory Ratios Increased Power
