Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 395/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 37.22 (945.3) | 11.78 (299.1) 46.3% |
| Width inches (mm) | 5.31 (135) | 15.55 (395) | 10.24 (260) 192.6% |
| Circum. inches (mm) | 79.93 (2030.1) | 116.92 (2969.75) | 36.99 (939.65) 46.3% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 10.11 (256.75) | 6.39 (162.25) 171.7% |
| Revolutions per mile (km) | 792.74 (492.59) | 541.91 (336.73) | -250.83 (-155.86) -31.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.26 mph (47.08 km/h) |
| 25 mph (40.23 km/h) | 36.57 mph (58.86 km/h) |
| 30 mph (48.28 km/h) | 43.89 mph (70.63 km/h) |
| 35 mph (56.33 km/h) | 51.2 mph (82.4 km/h) |
| 40 mph (64.37 km/h) | 58.51 mph (94.17 km/h) |
| 45 mph (72.42 km/h) | 65.83 mph (105.94 km/h) |
| 50 mph (80.47 km/h) | 73.14 mph (117.71 km/h) |
| 55 mph (88.51 km/h) | 80.46 mph (129.48 km/h) |
| 60 mph (96.56 km/h) | 87.77 mph (141.25 km/h) |
| 65 mph (104.61 km/h) | 95.09 mph (153.03 km/h) |
| 70 mph (112.65 km/h) | 102.4 mph (164.8 km/h) |
| 75 mph (120.7 km/h) | 109.71 mph (176.57 km/h) |
| 80 mph (128.75 km/h) | 117.03 mph (188.34 km/h) |
| 85 mph (136.79 km/h) | 124.34 mph (200.11 km/h) |
| 90 mph (144.84 km/h) | 131.66 mph (211.88 km/h) |
| 95 mph (152.89 km/h) | 138.97 mph (223.65 km/h) |
| 100 mph (160.93 km/h) | 146.29 mph (235.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1379 | 1602 | 1725 | 1802 | 1884 | 1942 | 2007 | 2083 | 2189 | 2295 | 2412 | 2506 | 2676 | 2864 | 3010 | 3104 | 3157 | 3351 | 3621 | 4208 |
Better Fuel Economy Factory Ratios Increased Power
