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Motorcycle Sprocket Size/Ratio Calculator


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Honda CRF150R (2007-2009)

Honda CRF150R (2007-2009)
FrontRearChainLinks
Honda CRF150R (2007-2009)1550420120
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
15T48T3.20 -4.2%+4.2%
15T49T3.27 -2.0%+2.0%
15T50T3.33
15T51T3.40+2.0% -2.0%
15T52T3.47+3.8% -3.8%
15T53T3.53+5.7% -5.7%
15T54T3.60+7.4% -7.4%



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