Shimano Sora R3000 9-speed rear derailleur, medium cage – ERDR3000GS

Compatible with up to 34 teeth.

I choose my options

Rear derailleur clevis

Speed compatibility

Transmission type

MPN : ERDR3000GS | EAN : 4524667678663 | Ref : 18506260001

€34.50

Price : €47.99

Dispatch within 4 to 6 days

Quantity

Based on 20 reviews

Show reviews

Shimano Sora R3000 9-speed rear derailleur, medium cage – ERDR3000GS

More details Dispatch within 4 to 6 days

Shimano Sora R3000 9-speed rear derailleur, medium cage – ERDR3000GS

€34.50

Our advice

A modernised look in line with the Tiagra 4700 and Ultegra 6800.

Denis M.

A former racer with a keen eye for equipment

Shimano ’s Sora R3000 GS rear derailleur (part number ERDR3000GS) is designed for road and touring cyclists looking for a reliable, precise and durable drivetrain offering excellent value for money. Part of the Sora 9-speed range, it offers smooth and consistent gear changes, even under load, thanks to its robust design and compatibility with Shimano HG 9-speed drivetrains.

Its medium cage (GS) accommodates cassettes of up to 34 teeth, offering a wider gear range to tackle hilly routes, long training rides or cycle tours. With a total capacity of 43 teeth, it is an excellent choice for endurance, fitness and trekking road bikes fitted with a 2x9-speed drivetrain.

The Sora RD-R3000-GS Shimano features a wide parallelogram design that improves overall stiffness and optimises gear-changing precision. Its 11-tooth pulleys help to reduce operating noise and chain wear, ensuring a quieter and more durable drivetrain.

Key features

Compatible with Shimano 9-speed drivetrains.
Chape GS middle sprocket suitable for cassettes up to 34 teeth.
Total capacity of 43 teeth.
Precise and smooth gear changes.
Rigid construction for improved precision.
11-tooth pulleys to minimise noise and wear.
Excellent balance between performance, reliability and price.

FAQ

Is this derailleur compatible with all Shimano 9-speed drivetrains?

Yes, the Shimano Sora RD-R3000-GS is designed to work with 9-speed Shimano s using a 9-speed HG chain.

What is the difference between a GS cage and an SS cage?

The GS version (medium cage) accommodates larger cassettes, up to 34 teeth, whilst the SS version (short cage) is limited to more compact gear ratios.

Can this derailleur be used for cycle touring?

Yes, its 43-tooth capacity and compatibility with cassettes up to 11-34 teeth make it an ideal solution for hilly routes and cycle tours.

Is the derailleur easy to adjust?

Yes, it features a built-in cable tensioner that allows for precise adjustment of the indexing to ensure optimal gear changes.

Rear derailleur clevis	Medium
Speed compatibility	9v
Transmission type	Mechanical
EAN	4524667678663
Supplier reference	ERDR3000GS

Average rating: 4.8 out of 5

Based on 20 reviews

Show attestation

Reviews subject to control

Reviews submitted are subject to control.
Reviews are listed in descending chronological order.
Reviews were submitted without any reward.
The maximum publication period for reviews is 30 days.
The maximum retention period for reviews corresponds to the period of the merchant's contract.

Filter by rating

Sort by

Rated 5 out of 5 Alain b.

Published Sep 24, 2026 at 06:56 pm Order date: Sep 09, 2026 (Translated review)

Everything is ok
Rated 5 out of 5 Fabrice L.

Published Sep 29, 2025 at 09:08 pm (Translated review)

Very good product, fast delivery times
Rated 5 out of 5 James C.

Published Jul 20, 2024 at 05:09 pm (Translated review)

Impeccable quality-price ratio. I just put it on my old trex 9v. no noise. I just did 2 outings in the Alps with, col de roselend and col des saisies.
Rated 4 out of 5 Xavier S.

Published Dec 11, 2023 at 11:45 pm (Translated review)

Breathe quality, high-end look
Rated 5 out of 5 Gilles P.

Published Oct 12, 2022 at 10:23 pm (Translated review)

good derailleur, solid and precise for 9 speeds
Rated 5 out of 5 Patrice A.

Published Oct 11, 2022 at 07:08 pm (Translated review)

Well-finished derailleur, works well. Allows switching to a 34 cassette. Well-finished and nice in black.
Rated 5 out of 5 Roger p.

Published Sep 28, 2022 at 06:45 pm (Translated review)

Very satisfied, the material meets my expectations, I recommend
Rated 5 out of 5 Sebastien D.

Published Aug 25, 2022 at 01:29 pm (Translated review)

Good mid-range derailleur. Does the job cool. Impeccable.
Rated 5 out of 5 Sebastien v.

Published Jul 08, 2022 at 12:10 pm (Translated review)

Very happy with the derailleur, the gear shifting is smoother and more fluid.
Rated 5 out of 5 Alain n.

Published Jan 18, 2022 at 11:46 am (Translated review)

Good advice on the phone, competitive prices, extremely short delivery times, in short, it's all good. However, the derailleur is not yet mounted, but I'm not worried. Trust it.