Which one do I have to buy for 1x11, crank 30T and 11-46T rear?

I have this rear derailleur set up as a 1x11 with an 11-42 cassette, but I believe it can handle an 11-46. Check the specs on it on Shimano website.

Does it work for 9 speed x 3?

No, this is for an 11 speed setup. Best used as a 1x setup. One front chainring and an 11 speed cassette.

Is there no way to choose between the two sizes, thumbs down?

I have no idea why they put "one size" as an option lol. As long as you do not have more than 46t on the cassette, just close your eyes and pick one, it will work.

11x42(46) speed rear cassette. Which derailleur GS or SGS 2x 36/22 Ft crank. I read 2x11 SG but does not say which max tooth cassette it will handle.

Just installed 1X (30 chainring) with 46 rear 11 speed. Works great, 117 links.

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Deore XT M8000 11Spd Shadow+ Rear Derailleur

Product ID: 52434814

Details

Brand
SHIMANO
Colour
Black
Item weight
0.27 Kilograms
Material
Aluminium
Mounting type
Clamp-On Mount

🖤Durable sleek black metal build

⚙️11-speed precision shifting

🚵‍♂️Shadow+ chain stabilizer tech

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€ 110.88

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Shift Like a Pro, Ride Like You Own the Trail

PRO LEVEL RELIABILITY - Trusted by riders for over 500 miles of flawless performance right out of the box.
SHADOW CHAIN STABILIZER - Eliminate chain slap and maintain control on the roughest trails.
ROBUST METAL CONSTRUCTION - Engineered for durability and long-lasting performance under pressure.
SEAMLESS 11 SPEED SHIFTING - Experience flawless gear transitions for every terrain and ride style.
VERSATILE MOUNTING OPTIONS - Clamp-On or Braze-On mounts for easy installation on any MTB frame.

The Shimano Deore XT M8000 11-speed Shadow+ Rear Derailleur delivers professional-grade shifting precision and chain stability. Built with durable metal and featuring versatile mounting options, it ensures smooth, reliable performance on all MTB adventures. Highly rated by thousands of riders, it’s the upgrade your bike deserves for seamless control and trail dominance.

Specifications

ASIN	B00WLFV0BU
Best Sellers Rank	97,941 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 73 in Cycling Shifters
Brand	SHIMANO
Brand Name	SHIMANO
Case Material Type	Plastic
Colour	Black
Customer Reviews	4.7 out of 5 stars 1,037 Reviews
Global Trade Identification Number	04524667919995
Included Components	nothing
Item Type Name	MTB XT M8000 Rear Derailleur 2x11S Medium Stick 39
Item Weight	0.27 Kilograms
Item weight	0.27 Kilograms
Manufacturer	SHIMANO
Manufacturer Part Number	587763
Manufacturer Warranty Description	producer
Material	Metal
Material Type	Metal
Model Number	587763
Mount Type	Clamp-On Mount or Braze-On Mount
Mounting type	Clamp-On Mount or Braze-On Mount
Number of Teeth	10
UPC	796254014794 689228919990
Unit Count	1.0 count

Reviews

C**H

Bike

Excellent quality and condition fitted well and works a dream thankyou

16.10.2025

L**N

Brilliant.

Flawless. Installed on a new project build then took round a 500mile bike ride a few weeks later and no issues. Seamless shifting even using road shifters and a tanpan. Highly recommend.

25.10.2021

A**R

buy smtg else

spend a bit more .i couldnt get it to do anything re adjustment .screws in or out made no difference .not even sure it s a shimano tbh.sits on the workbench now as an ornament

28.03.2025

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