Shimano Acera RD-M3000 rear derailleur with long cage. The Shadow technology provides better protection of the 9-speed RD and increases it\'s lifetime. The rear derailleur is compatible to cassettes w
Shimano Acera RD-M3000 rear derailleur with long cage. The Shadow technology provides better protection of the 9-speed RD and increases it\'s lifetime. The rear derailleur is compatible to cassettes w
