Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-12 | 165/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.76 (552.8) | 20.8 (528.2) | -0.97 (-24.6) -4.5% |
| Width inches (mm) | 6.1 (155) | 6.5 (165) | 0.39 (10) 6.5% |
| Circum. inches (mm) | 68.37 (1736.67) | 65.33 (1659.39) | -3.04 (-77.28) -4.5% |
| Sidewall Height inches (mm) | 4.88 (124) | 3.9 (99) | -0.98 (-25) -20.2% |
| Revolutions per mile (km) | 926.68 (575.81) | 969.84 (602.63) | 43.16 (26.82) 4.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.11 mph (30.75 km/h) |
| 25 mph (40.23 km/h) | 23.89 mph (38.44 km/h) |
| 30 mph (48.28 km/h) | 28.66 mph (46.13 km/h) |
| 35 mph (56.33 km/h) | 33.44 mph (53.82 km/h) |
| 40 mph (64.37 km/h) | 38.22 mph (61.51 km/h) |
| 45 mph (72.42 km/h) | 43 mph (69.2 km/h) |
| 50 mph (80.47 km/h) | 47.77 mph (76.89 km/h) |
| 55 mph (88.51 km/h) | 52.55 mph (84.58 km/h) |
| 60 mph (96.56 km/h) | 57.33 mph (92.26 km/h) |
| 65 mph (104.61 km/h) | 62.11 mph (99.95 km/h) |
| 70 mph (112.65 km/h) | 66.88 mph (107.64 km/h) |
| 75 mph (120.7 km/h) | 71.66 mph (115.33 km/h) |
| 80 mph (128.75 km/h) | 76.44 mph (123.02 km/h) |
| 85 mph (136.79 km/h) | 81.22 mph (130.71 km/h) |
| 90 mph (144.84 km/h) | 85.99 mph (138.4 km/h) |
| 95 mph (152.89 km/h) | 90.77 mph (146.08 km/h) |
| 100 mph (160.93 km/h) | 95.55 mph (153.77 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
