Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-17 | 285/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.5 (647.8) | 36.07 (916.3) | 10.57 (268.5) 41.4% |
| Width inches (mm) | 5.31 (135) | 11.22 (285) | 5.91 (150) 111.1% |
| Circum. inches (mm) | 80.12 (2035.12) | 113.33 (2878.64) | 33.21 (843.52) 41.4% |
| Sidewall Height inches (mm) | 4.25 (108) | 9.54 (242.25) | 5.29 (134.25) 124.3% |
| Revolutions per mile (km) | 790.78 (491.37) | 559.06 (347.39) | -231.72 (-143.98) -29.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.29 mph (45.53 km/h) |
| 25 mph (40.23 km/h) | 35.36 mph (56.91 km/h) |
| 30 mph (48.28 km/h) | 42.43 mph (68.29 km/h) |
| 35 mph (56.33 km/h) | 49.51 mph (79.67 km/h) |
| 40 mph (64.37 km/h) | 56.58 mph (91.06 km/h) |
| 45 mph (72.42 km/h) | 63.65 mph (102.44 km/h) |
| 50 mph (80.47 km/h) | 70.72 mph (113.82 km/h) |
| 55 mph (88.51 km/h) | 77.8 mph (125.2 km/h) |
| 60 mph (96.56 km/h) | 84.87 mph (136.58 km/h) |
| 65 mph (104.61 km/h) | 91.94 mph (147.97 km/h) |
| 70 mph (112.65 km/h) | 99.01 mph (159.35 km/h) |
| 75 mph (120.7 km/h) | 106.09 mph (170.73 km/h) |
| 80 mph (128.75 km/h) | 113.16 mph (182.11 km/h) |
| 85 mph (136.79 km/h) | 120.23 mph (193.49 km/h) |
| 90 mph (144.84 km/h) | 127.3 mph (204.88 km/h) |
| 95 mph (152.89 km/h) | 134.38 mph (216.26 km/h) |
| 100 mph (160.93 km/h) | 141.45 mph (227.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1423 | 1653 | 1780 | 1859 | 1943 | 2004 | 2070 | 2149 | 2258 | 2367 | 2488 | 2585 | 2761 | 2954 | 3106 | 3203 | 3257 | 3457 | 3735 | 4341 |
Better Fuel Economy Factory Ratios Increased Power
