Motorcycle Sprocket Size/Ratio Calculator
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Honda CRF450X (2005-2009)
| Front | Rear | Chain | Links | |
| Honda CRF450X (2005-2009) | 13 | 51 | 520 | 114 |
Select current size of front and rear sprockets
as well as the new sizes.
as well as the new sizes.
| Front | Rear | Ratio | Torque | Speed |
| 13T | 49T | 3.77 | -4.1% | +4.1% |
| 13T | 50T | 3.85 | -2.0% | +2.0% |
| 13T | 51T | 3.92 | ||
| 13T | 52T | 4.00 | +1.9% | -1.9% |
| 13T | 53T | 4.08 | +3.8% | -3.8% |
| 13T | 54T | 4.15 | +5.6% | -5.6% |
| 13T | 55T | 4.23 | +7.3% | -7.3% |
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