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Motorcycle Sprocket Size/Ratio Calculator


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Yamaha WR250F (2001-2006)

FrontRearChainLinks
Yamaha WR250F (2001-2006)1352520114
Select current size of front and rear sprockets
as well as the new sizes.

FRONT REAR LINKS
CURRENT
NEW
FrontRearRatioTorqueSpeed
13T50T3.85 -4.0%+4.0%
13T51T3.92 -2.0%+2.0%
13T52T4.00
13T53T4.08+1.9% -1.9%
13T54T4.15+3.7% -3.7%
13T55T4.23+5.5% -5.5%
13T56T4.31+7.1% -7.1%





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