RD-5800 105 11-speed rear derailleur, SS, for low gear 23-28T, black

11-speed 105 wide link rear derailleur medium cage - GS
Advanced Wide Link design increases rigidity and shifting performance
Super stiff for fast and accurate changes across the cassette
Large 11 tooth pulleys increase service life and reduce noise
Super light shift action
Compatible with 11-speed drivetrains
Maximum low sprocket 23-28T with double chainset
Maximum front difference 16T, total capacity 33T
Average weight 232 grams