Shimano 105 11-speed Road Bicycle Rear Derailleur - RD-5800 (Silver - GS) Go to amazon.com Related posts Top 10 recommendation stages cycling 5800 FeatureColor: SilverWeight: 250Largest Cog: 32Chain Wrap Capacity: 37Cage Length: Medium DescriptionShimano 105 5800-GS 11-Speed Medium Cage Rear Derailleur Silver