SprocketCalculator.com

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

Link count is approximate.
Make sure chain is long enough before you cut it.
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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