Stay active with smooth and decisive rear shifting in any urban environmentCreate a more active urban lifestyle with this durable rear derailleur's smooth and decisive shifting performance for 1x11-speed systems. Its low-profile design and chain stabilisation give riders the confidence to choose rougher routes. Plus, the premium machine-finished aluminium textures showcase the integration of design and engineering.Model Number: RD-U8000Series: CUES U8000 SeriesColor: Series colorRemarks: E-bike ratedRear speeds: 11Compatible chain: LINKGLIDE, HG 11-speedTop-normal spring type|SHIMANO SHADOW RD+: ?Mount|Direct attachment (conventional): ?Cable adjuster: ?Max. front difference: 0TTotal capacity: 39TLow sprocket|Max: 50TLow sprocket|Min: 50TTop sprocket|Max: 11TTop sprocket|Min: 11TFluoric coated link bushings: 4Pulley|Guide pulley bearing: Sealed bearingPulley|Tension pulley bearing: Sealed bearingPulley|Teeth: 13/13TPulley|Sunken type pulley screw: ?Seamless shifting andpedallingperformance that's made to lastChain stabiliser reduces chain drop, slap and noiseLow-profile design protects rear derailleur from obstacles in a wide variety of riding scenesStylish and polished aluminium finish with machine-cut texturesTotal capacity: 39T