Shimano Altus Shadow RD-M2000-SGS Rear Derailleur 9sp Direct AttachmentThe Shimano Altus Shadow RD-M2000 Rear Derailleur features Shimano Shadow RD design and wider linkage that ensures durability and precise shifting. The derailleur has a super low profile design and single tension construction so that they do not hit the chainstay in rough riding conditions. The wider linkage ensures durability and more precise shifting. The B-tension spring allows for quick and easy wheel installation and removal.689228687219
