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How to Replace the Cylinder and Piston of the Aprilia RS 125

Model: Aprilia Rs 125
Part: Hydraulic pistons

Video tutorial

To replace the cylinder and piston of the Aprilia RS 125, first secure the bike on a stand and lift the fuel tank cover. Once you have access to the internal components, remove the filter, carburettor, radiator tank, and battery using the appropriate tools.

By removing the screws from the cylinder and sliding it out, the piston will be visible. To remove the piston, it will be necessary to take off the retaining circlip, being careful not to bend the conrod.

Once the piston and cylinder have been removed, install the new parts by reversing the steps.


Updated on 7 May 2026 by ScegliAuto


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by ScegliAuto

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