Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-15 | 155/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.39 (645) | 24.76 (629) | -0.63 (-16) -2.5% |
| Width inches (mm) | 6.5 (165) | 6.1 (155) | -0.39 (-10) -6.1% |
| Circum. inches (mm) | 79.78 (2026.33) | 77.8 (1976.06) | -1.98 (-50.27) -2.5% |
| Sidewall Height inches (mm) | 5.2 (132) | 4.88 (124) | -0.31 (-8) -6.1% |
| Revolutions per mile (km) | 794.22 (493.5) | 814.42 (506.06) | 20.2 (12.55) 2.5% |
155/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.5 mph (31.39 km/h) |
| 25 mph (40.23 km/h) | 24.38 mph (39.24 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.08 km/h) |
| 35 mph (56.33 km/h) | 34.13 mph (54.93 km/h) |
| 40 mph (64.37 km/h) | 39.01 mph (62.78 km/h) |
| 45 mph (72.42 km/h) | 43.88 mph (70.62 km/h) |
| 50 mph (80.47 km/h) | 48.76 mph (78.47 km/h) |
| 55 mph (88.51 km/h) | 53.64 mph (86.32 km/h) |
| 60 mph (96.56 km/h) | 58.51 mph (94.17 km/h) |
| 65 mph (104.61 km/h) | 63.39 mph (102.01 km/h) |
| 70 mph (112.65 km/h) | 68.26 mph (109.86 km/h) |
| 75 mph (120.7 km/h) | 73.14 mph (117.71 km/h) |
| 80 mph (128.75 km/h) | 78.02 mph (125.55 km/h) |
| 85 mph (136.79 km/h) | 82.89 mph (133.4 km/h) |
| 90 mph (144.84 km/h) | 87.77 mph (141.25 km/h) |
| 95 mph (152.89 km/h) | 92.64 mph (149.1 km/h) |
| 100 mph (160.93 km/h) | 97.52 mph (156.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2073 | 2408 | 2593 | 2708 | 2831 | 2919 | 3016 | 3131 | 3290 | 3448 | 3625 | 3766 | 4022 | 4304 | 4524 | 4665 | 4745 | 5036 | 5442 | 6323 |
Better Fuel Economy Factory Ratios Increased Power
