Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-14 | 115/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.76 (603.6) | 19.24 (488.8) | -4.52 (-114.8) -19% |
| Width inches (mm) | 6.1 (155) | 4.53 (115) | -1.57 (-40) -25.8% |
| Circum. inches (mm) | 74.66 (1896.27) | 60.46 (1535.61) | -14.2 (-360.65) -19% |
| Sidewall Height inches (mm) | 4.88 (124) | 3.62 (92) | -1.26 (-32) -25.8% |
| Revolutions per mile (km) | 848.69 (527.35) | 1048.02 (651.21) | 199.32 (123.85) 23.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.2 mph (26.07 km/h) |
| 25 mph (40.23 km/h) | 20.25 mph (32.58 km/h) |
| 30 mph (48.28 km/h) | 24.29 mph (39.1 km/h) |
| 35 mph (56.33 km/h) | 28.34 mph (45.61 km/h) |
| 40 mph (64.37 km/h) | 32.39 mph (52.13 km/h) |
| 45 mph (72.42 km/h) | 36.44 mph (58.65 km/h) |
| 50 mph (80.47 km/h) | 40.49 mph (65.16 km/h) |
| 55 mph (88.51 km/h) | 44.54 mph (71.68 km/h) |
| 60 mph (96.56 km/h) | 48.59 mph (78.2 km/h) |
| 65 mph (104.61 km/h) | 52.64 mph (84.71 km/h) |
| 70 mph (112.65 km/h) | 56.69 mph (91.23 km/h) |
| 75 mph (120.7 km/h) | 60.74 mph (97.74 km/h) |
| 80 mph (128.75 km/h) | 64.78 mph (104.26 km/h) |
| 85 mph (136.79 km/h) | 68.83 mph (110.78 km/h) |
| 90 mph (144.84 km/h) | 72.88 mph (117.29 km/h) |
| 95 mph (152.89 km/h) | 76.93 mph (123.81 km/h) |
| 100 mph (160.93 km/h) | 80.98 mph (130.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
