Often mistreated on mountain bikes, the rear derailleur hanger requires special attention. We recommend replacing it if it is no longer aligned to prevent chain jamming and significant damage.
Bruno V.
Road specialist
The Shimano Y5RT98090 outer cage is a spare part for the Shimano XT RD-M8000-SGS 11-speed MTB rear derailleur. It forms the right-hand side of the cage, commonly referred to as the outer cage. It provides tension for the cage and supports the derailleur pulleys.
Mountain bike rear derailleur outer cage
Shimano XT RDM8000SGS model
Large cage version
11-speed
Brand: Shimano
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