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Motorcycle Sprocket Size/Ratio Calculator


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Honda CRF230F (2003-2009)

Honda CRF230F (2003-2009)
FrontRearChainLinks
Honda CRF230F (2003-2009)1350520110
Select current size of front and rear sprockets
as well as the new sizes.

FRONT REAR LINKS
CURRENT
NEW

Link count is approximate.
Make sure chain is long enough before you cut it.
FrontRearRatioTorqueSpeed
13T48T3.69 -4.2%+4.2%
13T49T3.77 -2.0%+2.0%
13T50T3.85
13T51T3.92+2.0% -2.0%
13T52T4.00+3.8% -3.8%
13T53T4.08+5.7% -5.7%
13T54T4.15+7.4% -7.4%



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