will this work for 1X11- 51 Teeth drive terrain?

Yes. It's designed for 1x11 speed drive train. I use it on a 11-51 cassette.

Can I attach this 5100 w/o the G link which was part of my prior shimano deraillor?

It should bolt to your existing derailleur hanger.

Deore Rd M5100 Sgs Rear Derailleur 11 Speed Long Cage

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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R3464

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Shift faster, climb higher, ride smarter.

SHADOW RD TECHNOLOGY - Enjoy a quieter, more stable ride with reduced chain drops and enhanced drivetrain control.
TRUSTED SHIMANO QUALITY - Backed by a 4.6-star rating and engineered in the USA for reliability and performance.
LOW PROFILE DURABLE DESIGN - Ride confidently knowing your derailleur resists damage from rough terrain and aggressive trails.
PRECISION 11 SPEED SHIFTING - Experience seamless gear transitions that keep you ahead on every trail.
CLIMB STEEPER WITH 51 T COMPATIBILITY - Tackle the toughest ascents with a derailleur built for big cogs and bigger challenges.

The Shimano Deore RD-M5100-SGS is a high-performance 11-speed rear derailleur featuring a long cage design compatible with up to 51-tooth cogs. Equipped with Shadow RD+ technology, it ensures stable, quiet shifting and reduced chain drops. Built with durable aluminum and a low-profile mount, this derailleur is engineered for aggressive mountain biking, delivering reliable precision and Shimano’s trusted quality.

Specifications

ASIN	B088XPFXGT
Brand	SHIMANO
Brand Name	SHIMANO
Case Material Type	Aluminium
Colour	Black
Country Of Origin	USA
Customer Reviews	4.6 out of 5 stars 148 Reviews
Item Dimensions L x W x H	25.4L x 17.8W x 7.6H Centimeters
Item Weight	490 g
Manufacturer	Shimano
Manufacturer Part Number	IRDM5100SGS
Material	Multi
Material Type	Multi
Model Number	IRDM5100SGS 3/15
Mount Type	Braze-On Mount
Mounting Type	Braze-On Mount
Number of Teeth	11
Product Dimensions	25.4L x 17.8W x 7.6H Centimeters
UPC	192790618708
Whats In The Box1 - Whats In The Box3	Rear Derailleur

Reviews

J**T

Genuine item

... boxed as new

7.11.2025

E**A

Bene, ma non benissimo

Arrivato con gabbia schiacciata perché non aveva un imballaggio, ma solo un sacchetto.

29.08.2023

H**R

Alles gut

Shinmano eben. Montiert, eingestellt und funktioniert. Keine Probleme

24.02.2025

R**.

No nonsense derailleur that works as designed.

It works. Not sure why anyone needs anything more expensive than this

10.05.2025

L**S

Calificación

Producto perfecto y poner el precio esta muy bien

24.06.2025

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TrustScore 4.5 | 7,300+ reviews

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2 months ago

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R3464

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago