Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 160/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 25.08 (637) | -0.26 (-6.6) -1% |
| Width inches (mm) | 7.09 (180) | 6.3 (160) | -0.79 (-20) -11.1% |
| Circum. inches (mm) | 79.6 (2021.93) | 78.79 (2001.19) | -0.82 (-20.73) -1% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.04 (128) | -0.63 (-16) -11.1% |
| Revolutions per mile (km) | 795.94 (494.58) | 804.19 (499.7) | 8.25 (5.12) 1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.79 mph (31.86 km/h) |
| 25 mph (40.23 km/h) | 24.74 mph (39.82 km/h) |
| 30 mph (48.28 km/h) | 29.69 mph (47.79 km/h) |
| 35 mph (56.33 km/h) | 34.64 mph (55.75 km/h) |
| 40 mph (64.37 km/h) | 39.59 mph (63.71 km/h) |
| 45 mph (72.42 km/h) | 44.54 mph (71.68 km/h) |
| 50 mph (80.47 km/h) | 49.49 mph (79.64 km/h) |
| 55 mph (88.51 km/h) | 54.44 mph (87.61 km/h) |
| 60 mph (96.56 km/h) | 59.38 mph (95.57 km/h) |
| 65 mph (104.61 km/h) | 64.33 mph (103.53 km/h) |
| 70 mph (112.65 km/h) | 69.28 mph (111.5 km/h) |
| 75 mph (120.7 km/h) | 74.23 mph (119.46 km/h) |
| 80 mph (128.75 km/h) | 79.18 mph (127.43 km/h) |
| 85 mph (136.79 km/h) | 84.13 mph (135.39 km/h) |
| 90 mph (144.84 km/h) | 89.08 mph (143.36 km/h) |
| 95 mph (152.89 km/h) | 94.03 mph (151.32 km/h) |
| 100 mph (160.93 km/h) | 98.97 mph (159.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2047 | 2377 | 2560 | 2674 | 2795 | 2883 | 2978 | 3092 | 3248 | 3405 | 3579 | 3719 | 3971 | 4250 | 4467 | 4607 | 4685 | 4973 | 5373 | 6244 |
Better Fuel Economy Factory Ratios Increased Power
