Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/80-16 | 200/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.71 (678.4) | 25.87 (657.2) | -0.83 (-21.2) -3.1% |
| Width inches (mm) | 6.69 (170) | 7.87 (200) | 1.18 (30) 17.6% |
| Circum. inches (mm) | 83.91 (2131.26) | 81.29 (2064.65) | -2.62 (-66.6) -3.1% |
| Sidewall Height inches (mm) | 5.35 (136) | 3.94 (100) | -1.42 (-36) -26.5% |
| Revolutions per mile (km) | 755.12 (469.21) | 779.47 (484.34) | 24.36 (15.14) 3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.38 mph (31.18 km/h) |
| 25 mph (40.23 km/h) | 24.22 mph (38.98 km/h) |
| 30 mph (48.28 km/h) | 29.06 mph (46.77 km/h) |
| 35 mph (56.33 km/h) | 33.91 mph (54.57 km/h) |
| 40 mph (64.37 km/h) | 38.75 mph (62.36 km/h) |
| 45 mph (72.42 km/h) | 43.59 mph (70.16 km/h) |
| 50 mph (80.47 km/h) | 48.44 mph (77.95 km/h) |
| 55 mph (88.51 km/h) | 53.28 mph (85.75 km/h) |
| 60 mph (96.56 km/h) | 58.13 mph (93.54 km/h) |
| 65 mph (104.61 km/h) | 62.97 mph (101.34 km/h) |
| 70 mph (112.65 km/h) | 67.81 mph (109.13 km/h) |
| 75 mph (120.7 km/h) | 72.66 mph (116.93 km/h) |
| 80 mph (128.75 km/h) | 77.5 mph (124.72 km/h) |
| 85 mph (136.79 km/h) | 82.34 mph (132.52 km/h) |
| 90 mph (144.84 km/h) | 87.19 mph (140.31 km/h) |
| 95 mph (152.89 km/h) | 92.03 mph (148.11 km/h) |
| 100 mph (160.93 km/h) | 96.88 mph (155.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1984 | 2304 | 2482 | 2591 | 2710 | 2794 | 2887 | 2997 | 3148 | 3300 | 3469 | 3604 | 3849 | 4119 | 4330 | 4465 | 4541 | 4820 | 5208 | 6052 |
Better Fuel Economy Factory Ratios Increased Power
