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Wilier Derailleur Hanger Dropout for Montegrappa


A bicycle rear derailleur hanger is designed with the purpose to break or bend in order to prevent or limit damage to the bicycle frame or other drivetrain components in case of an accident: crash, drivetrain failure and others.


For Wilier Montegrappa 2017 bike.

SKU: AV131MON2017 Categories: ,
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