Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-15 | 155/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.85 (555) | 22.93 (582.5) | 1.08 (27.5) 5% |
| Width inches (mm) | 5.71 (145) | 6.1 (155) | 0.39 (10) 6.9% |
| Circum. inches (mm) | 68.65 (1743.58) | 72.05 (1829.98) | 3.4 (86.39) 5% |
| Sidewall Height inches (mm) | 3.43 (87) | 3.97 (100.75) | 0.54 (13.75) 15.8% |
| Revolutions per mile (km) | 923.01 (573.53) | 879.43 (546.45) | -43.58 (-27.08) -4.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.99 mph (33.78 km/h) |
| 25 mph (40.23 km/h) | 26.24 mph (42.23 km/h) |
| 30 mph (48.28 km/h) | 31.49 mph (50.67 km/h) |
| 35 mph (56.33 km/h) | 36.73 mph (59.12 km/h) |
| 40 mph (64.37 km/h) | 41.98 mph (67.56 km/h) |
| 45 mph (72.42 km/h) | 47.23 mph (76.01 km/h) |
| 50 mph (80.47 km/h) | 52.48 mph (84.45 km/h) |
| 55 mph (88.51 km/h) | 57.73 mph (92.9 km/h) |
| 60 mph (96.56 km/h) | 62.97 mph (101.35 km/h) |
| 65 mph (104.61 km/h) | 68.22 mph (109.79 km/h) |
| 70 mph (112.65 km/h) | 73.47 mph (118.24 km/h) |
| 75 mph (120.7 km/h) | 78.72 mph (126.68 km/h) |
| 80 mph (128.75 km/h) | 83.96 mph (135.13 km/h) |
| 85 mph (136.79 km/h) | 89.21 mph (143.57 km/h) |
| 90 mph (144.84 km/h) | 94.46 mph (152.02 km/h) |
| 95 mph (152.89 km/h) | 99.71 mph (160.46 km/h) |
| 100 mph (160.93 km/h) | 104.95 mph (168.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2238 | 2600 | 2800 | 2924 | 3057 | 3152 | 3257 | 3381 | 3552 | 3724 | 3914 | 4066 | 4343 | 4647 | 4885 | 5038 | 5124 | 5438 | 5876 | 6828 |
Better Fuel Economy Factory Ratios Increased Power
