Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed
- Regular price
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$119.00 - Regular price
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- Sale price
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$119.00
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Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed – Go Big Without Going MTB
Designed for Shimano’s RD-RX812 11-speed GRX rear derailleur, this CNC-machined alloy cage lets you run a cassette up to 50T. Lightweight, ultra-precise and beautifully made, it’s the go-to upgrade for serious gravel riders chasing more range.
🌈 Looking for a colour option?
Not into black? We're happy to arrange a special colour order just for you!
🚴 Why Choose the Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed?
Shimano’s stock GRX rear derailleur does many things well, but running a massive cassette straight out of the box ain’t one of them. That’s where the Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed comes in.
Engineered specifically for the RD-RX812 mechanical derailleur, Garbaruk’s cage transforms your drivetrain by allowing you to run wide-range cassettes up to 50 teeth. Whether you’re climbing steep backcountry tracks, hauling gear across continents, or just want more low end gearing, Garbaruk has you covered.
Machined in Poland from high-strength 7075-T651 aluminium, this cage is as tough as it is light, and the finish is as crisp as the shifting. By reconfiguring the pulley positions, it optimises the derailleur’s movement to handle larger cogs smoothly and reliably. The result? Better shifting across the entire range and less drivetrain stress on those long, grindy climbs.
Want to punch it up a notch? Pair it with a set of Garbaruk’s oversized pulleys for even better performance.
Features
- Extend your Gear Range: Run up to a 50T cassette with your mechanical Shimano GRX RD-RX812 derailleur
- Optimised Pulley Positions: Repositions the jockey wheels to the optimal spot for enhanced chain line and shifting
- Clean & Reliable Upgrade: Precision-designed for GRX to deliver seamless compatibility and crisp performance
- Strong and Light: CNC-machined from aerospace-grade 7075-T651 aluminium, weighing in at just 47g
- Made for Rough Terrain: Built to withstand the demands of gravel and bikepacking without skipping a beat
- Perfect with Garbaruk Cassettes: Especially suited to Garbaruk’s wide-range 11-speed cassettes
Pro Bike Mechanic’s Tip
Want the ultimate gear upgrade? Pair this cage with a wide-range Garbaruk cassette and oversized pulleys for a gravel drivetrain that’s smoother, lighter and more capable than ever.
🚀 Ready to Ride?
Bigger climbs, smoother shifts, and sharper style – all without changing your derailleur. The Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed is your shortcut to better gearing and standout looks. Add one to your setup today and take your gravel drivetrain further.
Technical Details
- Material: 7075-T651 Aluminium Alloy
- Manufacturing process: CNC-milled
- Weight: 47g
- Finish: Anodised
- Derailleur compatibility: Shimano RD-RX812 (GRX 11-speed mechanical only)
- Cassette compatibility: Up to 50T with standard derailleur
- Pulley compatibility: Garbaruk 11T+16T pulley wheels (sold separately)
- Colours: Black (Note: Blue, Gold, Orange, Red, Green, Silver & Violet all available via special order)
- Warranty: 2 years
- Made in: Poland
FAQs
Q: What derailleur does the Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed fit?
A: This cage is made specifically for Shimano’s RD-RX812 11-speed GRX mechanical rear derailleur.
Q: Does the Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed fit Di2 derailleurs?
A: No. It will not fit Di2 GRX models. That’s what the Garbaruk Rear Derailleur Cage for Shimano GRX Di2 11-speed model is for.
Q: Can I use this derailleur cage to run a 50T cassette?
A: Absolutely – that’s the main advantage. You’ll unlock a much wider gear range without switching to an MTB derailleur.
Q: Why would I want to run a bigger cassette on my bike?
A: A wider cassette gives you a bigger gear range – perfect for bikepacking, gravel climbs, or simply spinning more comfortably across … well, pretty much any trail and terrain you want.
Q: Why is this better than a roadlink adapter?
A: Roadlink-style adapters simply drop the derailleur without correcting pulley alignment. Garbaruk’s cage redesigns the movement path, giving you better shifting and reliability across the whole cassette. No need for mucking around with adapters and compromises.
Q: Do I need new jockey wheels for my Garbaruk rear derailleur cage?
A: It’s not mandatory—you can run a Garbaruk derailleur cage with your old, boring jockey wheels—but we highly recommend pairing them with Garbaruk’s oversized pulley wheels for three reasons: 1) it will give you the smoothest and most efficient shifting; 2) it will eliminate the gap between the regular jockey wheel and a Garbaruk cage, to reduce the risk of debris (e.g. a stick) getting caught in between; and 3) they just look awesome.
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FAQs
What payment methods do you accept?
We accept major credit and debit cards, PayPal, and other secure payment methods at checkout. All payments are processed securely so you can feel confident placing your order.
How long will it take to get my order?
We dispatch orders within 1–2 business days so it's on the way to you a.s.a.p.
Shipping times vary by location. Standard delivery within Australia usually takes 2–6 business days.
Can I track my order?
You sure can! Once your order is on the move, you'll receive a tracking link via email.
Can I return or exchange an item?
Our full refunds and returns policy can be found here.
Do you ship internationally?
We only ship within Australia. (Sorry.)
How do I know if a component is compatible with my bike?
Each product page includes compatibility info, but if you’re unsure, feel free to contact us. We’re bike mechanics, and we’re happy to help!
Do you install components or offer servicing?
This webshop is focused on online retail. If you're in Adelaide, however, we run a separate workshop (Bio-Mechanics Cycles & Repairs). You're welcome to book in via that site to get components installed or your bike serviced.