Is the "medium" cage the ss or the gs version? shimano literature does not use the terms "short" or "medium" in their descriptions of the rd 8000.

medium is GS, short is SS for Shimano RD-8000 derailleurs. They cover 11-28T to 11-34T and 11-25T to 11-28T, respectively. See https://bike.shimano.com/en-EU/product/component/ultegra-r8000.html

is this for 10 speed ?

Actually, this will work with 10sp Tiagra. If you have ST-4700 levers (not sure about the MTB (flat bar) shifter version), then the pull ratio will work for and as 10sp on your 10sp cassette and shifter. You'll be future-proofed when you decide to switch out the lever, chain and cassette for actual 11sp. I am running ST-4700, RD-R8000GS, CS-MT771-10, CN-6701 (10sp) chain and everything works flawlessly.

El de tamaño M es el conocido como patilla larga ?

Sí, es lo mismo que pata larga.

What length of chain do I need with a medium cage?

Hi, we sell standard length: 116 link & you buy it & you have to cut yourself. if you need chain, we have it at my amazon store cycle4less asin #B00KQK5RAW. Bob

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Description

⚡ Shift into the future with Shimano Ultegra R8000 – where precision meets power!

SLEEK CABLE MANAGEMENT - Neatly routes excess shift cable to prevent snagging and fraying—ride worry-free.
ROBUST MEDIUM CAGE DESIGN - Optimized for durability and performance on varied terrain and longer rides.
FLAWLESS 11 SPEED SHIFTING - Experience ultra-smooth gear changes with Shimano’s precision engineering.
BACKWARDS COMPATIBLE UPGRADE - Seamlessly replaces older models like the 6800, unlocking next-level performance.
EXPANDED CASSETTE COMPATIBILITY - Handle cassettes up to 11-34T (and beyond) without a hitch for ultimate versatility.

The Shimano Ultegra R8000 Rear Derailleur Medium Box is a high-performance, 11-speed rear derailleur designed for road cyclists seeking smooth, reliable shifting. Featuring a medium cage compatible with 11-34T cassettes, it supports a wide gear range and fits both Ultegra R8000 and Dura-Ace R9100 groupsets. Its advanced cable routing and indexing system ensure quick, flawless gear changes, making it a top-tier upgrade for serious riders.

Specifications

ASIN	B072MKT5NR
Best Sellers Rank	#84,363 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #38 in Rear Bike Derailleurs
Brand	SHIMANO
Brand Name	SHIMANO
Case Material Type	Other
Color	Gray
Customer Reviews	4.8 out of 5 stars 747 Reviews
Global Trade Identification Number	00689228623156, 04524667623151
Included Components	Bike Parts
Item Dimensions L x W x H	9"L x 4.5"W x 4"H
Item Type Name	Bicycle Parts
Manufacturer	Shimano
Manufacturer Part Number	IRDR8000SS
Material	Metal
Material Type	Metal
Model Number	C8C055
Mount Type	Braze-On Mount
Mounting Type	Braze-On Mount
Number of Teeth	35
Product Dimensions	9"L x 4.5"W x 4"H
UPC	689228623156
Unit Count	1.0 Count
Warranty Description	2 Year Manufacturer

Reviews

N**F

11.09.2017

S**R

11.02.2023

N**S

12.02.2018

G**E

4.07.2024

D**L

1.10.2023

V**V

24.03.2023

M**N

18.05.2021

L**.

20.12.2024

R**W

17.06.2024

A**A

15.03.2026

T**K

25.03.2024

D**C

23.06.2025

A**A

27.12.2025

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Shimano Ultegra R8000 Rear Derailleur Box

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