Shimano Ultegra RD-R8000 Rear Derailleur (Black) (11 Speed) (Short Cage) (SS) (Shadow)

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Shimano Ultegra RD-R8000 Rear Derailleur (Black) (11 Speed) (Short Cage) (SS)
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The Shimano Ultegra R8000 11-Speed Derailleur, modeled after the Dura-Ace R9100, offers extended gear ratios of up to a 34 tooth cog (Medium Cage). The smooth and quick shift performance punches above its weight class. The derailleur features the Shimano Shadow RD design, which gives it a sleeker and lower profile. 


  • Shimano Shadow RD low-profile design
  • Pulley maintains consistent distance to cassette for increased shift stability
  • Maintains smooth, compact appearance
  • Stable shifting performance
  • Pulley follow-up in certain distance
  • SHIMANO SHADOW RD construction
  • Race endurance for less damage in crashes
  • Adapted for race specific frame design

Speed: 11 Speed
Shifter Compatibility: Shimano Road (11 Speed)
Shift Mechanism: Cable Actuated
Max. Tooth: 30T (Short Cage), 34T (Medium Cage)
Min. Tooth: 11T
Chain Wrap Capacity: 35T (Short Cage), 39T (Medium Cage)
Cage Material: Carbon/Aluminum
Chain Retention: Shadow
Color: Black
Weight: 200g (Short Cage), 210g (Medium Cage)

This product was added to our catalog on April 19, 2018

Tim Morken
Verified Owner
Monday, Mar 20 2023 (about a year ago)
Shimano Ultegra RD-R8000 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)
Excellent. I got this so I could use a 34 rear cog for those steep hills.
Verified Owner
Thursday, Jun 23 2022 (about 2 years ago)
Shimano Ultegra RD-R8000 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)
Love Shimano and never disappoints. Performance Bike delivers as promised. Fast shipping and email updates is phenomenal. Will always have my business.
Michael Lee
Verified Owner
Wednesday, Aug 11 2021 (about 2 years ago)
Shimano Ultegra RD-R8000 Rear Derailleur (Black) (11 Speed) (Medium Cage) (GS)
I bought this as part of my upgrade to Ultegra R8000 derailleurs and shifters coming from 10-speed 105 on my backup/indoor trainer bike. The cable routing through the derailleur runs inward compared to outward on the 105 RD, but I was able to figure it out. The limit "screws" are adjusted by hex and not and actual screwdriver so use caution so you don't round them. I'm running a 11-28T cassette, so the medium cage is overkill, but I always have the option to go larger (30-32?) if needed. Shifting is nice and smooth once I got the indexing down. I recommend doing this and setting your limits BEFORE slapping on your chain.