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Motorcycle Sprocket Size/Ratio Calculator


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Aprilia RS 250 (1995-2004)

FrontRearChainLinks
Aprilia RS 250 (1995-2004)1442520110
Select current size of front and rear sprockets
as well as the new sizes.

FRONT REAR LINKS
CURRENT
NEW
FrontRearRatioTorqueSpeed
14T40T2.86 -5.0%+5.0%
14T41T2.93 -2.4%+2.4%
14T42T3.00
14T43T3.07+2.3% -2.3%
14T44T3.14+4.5% -4.5%
14T45T3.21+6.7% -6.7%
14T46T3.29+8.7% -8.7%



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