Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 395/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 32.11 (815.5) | 7.54 (191.5) 30.7% |
| Width inches (mm) | 5.31 (135) | 15.55 (395) | 10.24 (260) 192.6% |
| Circum. inches (mm) | 77.18 (1960.35) | 100.86 (2561.97) | 23.69 (601.61) 30.7% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 8.55 (217.25) | 3.77 (95.75) 78.8% |
| Revolutions per mile (km) | 820.95 (510.11) | 628.17 (390.32) | -192.78 (-119.79) -23.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.14 mph (42.06 km/h) |
| 25 mph (40.23 km/h) | 32.67 mph (52.58 km/h) |
| 30 mph (48.28 km/h) | 39.21 mph (63.1 km/h) |
| 35 mph (56.33 km/h) | 45.74 mph (73.61 km/h) |
| 40 mph (64.37 km/h) | 52.28 mph (84.13 km/h) |
| 45 mph (72.42 km/h) | 58.81 mph (94.65 km/h) |
| 50 mph (80.47 km/h) | 65.34 mph (105.16 km/h) |
| 55 mph (88.51 km/h) | 71.88 mph (115.68 km/h) |
| 60 mph (96.56 km/h) | 78.41 mph (126.19 km/h) |
| 65 mph (104.61 km/h) | 84.95 mph (136.71 km/h) |
| 70 mph (112.65 km/h) | 91.48 mph (147.23 km/h) |
| 75 mph (120.7 km/h) | 98.02 mph (157.74 km/h) |
| 80 mph (128.75 km/h) | 104.55 mph (168.26 km/h) |
| 85 mph (136.79 km/h) | 111.09 mph (178.78 km/h) |
| 90 mph (144.84 km/h) | 117.62 mph (189.29 km/h) |
| 95 mph (152.89 km/h) | 124.15 mph (199.81 km/h) |
| 100 mph (160.93 km/h) | 130.69 mph (210.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1599 | 1857 | 2000 | 2088 | 2184 | 2252 | 2326 | 2415 | 2537 | 2660 | 2796 | 2905 | 3102 | 3320 | 3490 | 3598 | 3660 | 3884 | 4197 | 4877 |
Better Fuel Economy Factory Ratios Increased Power
