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Shimano · Rear derailleur
A dependable replacement rear derailleur for 9-speed SORA drivetrains, with the range for bigger climbing cassettes.
$89.99
PriceIn stock, ready to ship
If you need a clean, straightforward fix for a worn or damaged 9-speed road derailleur, this Shimano SORA medium cage rear derailleur is a sensible choice. It’s built for 9-speed HG drivetrains and the GS cage gives you the capacity for wider-range cassette setups, including up to 34T within Shimano’s published limits.
Sold by Ashburton Cycles
Verified store
Price
$89.99
Speed
9-speed
Cage
Medium cage
Series
SORA
This is the Shimano SORA RD-R3000-GS rear derailleur for 9-speed road drivetrains, designed as the medium cage option in the SORA family. For riders replacing a tired mech on a road bike, commuter or entry-level gravel build, it gives you the familiar Shimano feel with wide-range compatibility and simple mechanical setup.
The big reason to choose the GS version is gearing flexibility. Shimano lists it with 43T total capacity, a 28-34T largest sprocket range and 11T pulleys, which makes it a practical pick if you want lower climbing gears without jumping to a different drivetrain standard. Paired with an HG 9-speed chain and the right 9-speed controls, it’s a tidy option for restoring crisp indexed shifting on bikes that run compact double or triple-style SORA setups.
In real-world use, 9-speed SORA remains popular on affordable road, fitness and light gravel bikes because it’s easy to live with and inexpensive to maintain. If your priority is reliable shifting, broad parts availability and sensible running costs, this derailleur still makes a lot of sense. What it doesn’t offer is a clutch, so for rougher unsealed riding or dedicated 1x gravel builds there are better specialist options.
Ideal for riders replacing or refreshing a Shimano SORA 9-speed drivetrain on a road bike, commuter or light gravel bike and wanting support for a wider cassette range.
Built for 9-speed SORA systems
Designed for 9-speed Shimano road drivetrains using HG cassette spacing, making it a natural replacement for SORA-equipped bikes.
Medium cage for wider gearing
The GS cage supports a bigger rear cassette range than the short cage version, which is handy for climbing-focused setups.
Up to 34T cassette compatibility
Published compatibility includes a largest rear sprocket up to 34T, giving you scope for easier gearing on hills and loaded riding.
43T total capacity
Plenty of chain-wrap capacity for common 2x and triple-style 9-speed setups when matched correctly.
11-tooth pulleys
Uses 11T pulleys for standard Shimano road-style serviceability and straightforward replacement parts.
Direct-attachment fitment
Mounts to a conventional derailleur hanger, so it suits the vast majority of compatible road and commuter frames.
Integrated cable adjuster
The built-in cable adjuster makes fine indexing tweaks easier during installation and routine servicing.
Shimano Sora 9-Speed R3000 Rear Derailleur Feature Review and Weight
Jamesthebikeguy
Every detail as listed by the manufacturer.
Shimano is a Japanese component brand founded in 1921 in Sakai, Osaka. The company began with bicycle component manufacturing and has grown into a global business focused on bicycle components, fishing tackle and rowing equipment, while keeping its headquarters in Sakai. In cycling, Shimano is best known for building complete component ecosystems that span road, mountain, gravel, commuting and e-bike use. Its range covers drivetrains, brakes, wheels, pedals, shoes and related parts, and the brand has had a long presence in Australia through a local business established in Sydney in 1992.
Shimano · Rear derailleur
A dependable replacement rear derailleur for 9-speed SORA drivetrains, with the range for bigger climbing cassettes.
$89.99
In stockSpeed
9-speed
Cage
Medium cage
Series
SORA
Colour
Series colour
If you need a clean, straightforward fix for a worn or damaged 9-speed road derailleur, this Shimano SORA medium cage rear derailleur is a sensible choice. It’s built for 9-speed HG drivetrains and the GS cage gives you the capacity for wider-range cassette setups, including up to 34T within Shimano’s published limits.
This is the Shimano SORA RD-R3000-GS rear derailleur for 9-speed road drivetrains, designed as the medium cage option in the SORA family. For riders replacing a tired mech on a road bike, commuter or entry-level gravel build, it gives you the familiar Shimano feel with wide-range compatibility and simple mechanical setup.
The big reason to choose the GS version is gearing flexibility. Shimano lists it with 43T total capacity, a 28-34T largest sprocket range and 11T pulleys, which makes it a practical pick if you want lower climbing gears without jumping to a different drivetrain standard. Paired with an HG 9-speed chain and the right 9-speed controls, it’s a tidy option for restoring crisp indexed shifting on bikes that run compact double or triple-style SORA setups.
In real-world use, 9-speed SORA remains popular on affordable road, fitness and light gravel bikes because it’s easy to live with and inexpensive to maintain. If your priority is reliable shifting, broad parts availability and sensible running costs, this derailleur still makes a lot of sense. What it doesn’t offer is a clutch, so for rougher unsealed riding or dedicated 1x gravel builds there are better specialist options.
Ideal for riders replacing or refreshing a Shimano SORA 9-speed drivetrain on a road bike, commuter or light gravel bike and wanting support for a wider cassette range.
Built for 9-speed SORA systems
Designed for 9-speed Shimano road drivetrains using HG cassette spacing, making it a natural replacement for SORA-equipped bikes.
Medium cage for wider gearing
The GS cage supports a bigger rear cassette range than the short cage version, which is handy for climbing-focused setups.
Up to 34T cassette compatibility
Published compatibility includes a largest rear sprocket up to 34T, giving you scope for easier gearing on hills and loaded riding.
43T total capacity
Plenty of chain-wrap capacity for common 2x and triple-style 9-speed setups when matched correctly.
11-tooth pulleys
Uses 11T pulleys for standard Shimano road-style serviceability and straightforward replacement parts.
Direct-attachment fitment
Mounts to a conventional derailleur hanger, so it suits the vast majority of compatible road and commuter frames.
Integrated cable adjuster
The built-in cable adjuster makes fine indexing tweaks easier during installation and routine servicing.
Shimano Sora 9-Speed R3000 Rear Derailleur Feature Review and Weight
Jamesthebikeguy