Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 270/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 30.63 (778) | 4.98 (126.4) 19.4% |
| Width inches (mm) | 6.5 (165) | 10.63 (270) | 4.13 (105) 63.6% |
| Circum. inches (mm) | 80.59 (2047.06) | 96.23 (2444.16) | 15.63 (397.1) 19.4% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 5.31 (135) | -0.01 (-0.3) -0.2% |
| Revolutions per mile (km) | 786.17 (488.5) | 658.44 (409.14) | -127.73 (-79.37) -16.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.88 mph (38.43 km/h) |
| 25 mph (40.23 km/h) | 29.85 mph (48.04 km/h) |
| 30 mph (48.28 km/h) | 35.82 mph (57.65 km/h) |
| 35 mph (56.33 km/h) | 41.79 mph (67.25 km/h) |
| 40 mph (64.37 km/h) | 47.76 mph (76.86 km/h) |
| 45 mph (72.42 km/h) | 53.73 mph (86.47 km/h) |
| 50 mph (80.47 km/h) | 59.7 mph (96.08 km/h) |
| 55 mph (88.51 km/h) | 65.67 mph (105.68 km/h) |
| 60 mph (96.56 km/h) | 71.64 mph (115.29 km/h) |
| 65 mph (104.61 km/h) | 77.61 mph (124.9 km/h) |
| 70 mph (112.65 km/h) | 83.58 mph (134.51 km/h) |
| 75 mph (120.7 km/h) | 89.55 mph (144.12 km/h) |
| 80 mph (128.75 km/h) | 95.52 mph (153.72 km/h) |
| 85 mph (136.79 km/h) | 101.49 mph (163.33 km/h) |
| 90 mph (144.84 km/h) | 107.46 mph (172.94 km/h) |
| 95 mph (152.89 km/h) | 113.43 mph (182.55 km/h) |
| 100 mph (160.93 km/h) | 119.4 mph (192.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1676 | 1947 | 2096 | 2189 | 2289 | 2360 | 2439 | 2531 | 2660 | 2788 | 2931 | 3045 | 3251 | 3480 | 3658 | 3772 | 3836 | 4071 | 4399 | 5112 |
Better Fuel Economy Factory Ratios Increased Power
