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Motorcycle Sprocket Size/Ratio Calculator


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Honda CRF250R (2018)

FrontRearChainLinks
Honda CRF250R (2018)1449520116
Select current size of front and rear sprockets
as well as the new sizes.

FRONT REAR LINKS
CURRENT
NEW
FrontRearRatioTorqueSpeed
14T47T3.36 -4.3%+4.3%
14T48T3.43 -2.1%+2.1%
14T49T3.50
14T50T3.57+2.0% -2.0%
14T51T3.64+3.9% -3.9%
14T52T3.71+5.8% -5.8%
14T53T3.79+7.5% -7.5%



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