Garbaruk Rear Derailleur Cage for Shimano GRX Di2 11-speed
- Regular price
-
$119.00 - Regular price
-
- Sale price
-
$119.00
Couldn't load pickup availability
Garbaruk Rear Derailleur Cage for Shimano GRX Di2 11-speed – Fit a Bigger Cassette Without Changing Your Derailleur
Designed for Shimano’s RD-RX817 GRX Di2 11-speed derailleur, this lightweight CNC-machined cage lets you run wide-range cassettes up to 50T. Drop grams, gain gears and upgrade your gravel setup – all in one small, precision-crafted part.
🌈 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 Di2 11-speed?
Sometimes, a product comes along which makes the industry sit up and take notice. The Garbaruk Rear Derailleur Cage for Shimano GRX Di2 11-speed is that product, giving your electronic GRX derailleur the ability to handle a massive 11-50T cassette without compromising shift quality or drivetrain integrity… or having to change derailleurs.
Crafted in Poland from aerospace-grade 7075-T651 aluminium, this derailleur cage is lightweight, stiff and purpose-built for gravel riders who want a bigger gear range on the same setup. Whether you’re climbing a loaded bikepacking rig or spinning flat-out on open roads, this cage not only looks slick as hell but also gives your drivetrain the gearing flexibility you want.
Unlike generic adapters or roadlink-style patch-ups, Garbaruk’s cage redesigns the derailleur’s movement arc, positioning the upper jockey wheel closer to the smallest cog and the lower wheel further from the largest. The result? Cleaner shifts and smoother performance across the entire cassette.
Pair it with Garbaruk’s oversized pulleys for optimal results, and turn your RD-RX817 into a true wide-range drivetrain without having to buy a new derailleur. Light, durable and stylish, a Garbaruk cage is a small upgrade with a massive impact.
Features
- Wide-Range Compatibility: Enables your GRX Di2 derailleur to run cassettes up to 50T
- Optimised Pulley Positioning: Positions your jockey wheels for superior shifting performance
- Smooth & Precise Shifting: Engineered to enhance gear changes, even under load or on rough terrain
- True 1:1 Fit: Designed specifically for Shimano RD-RX817 - no guesswork, no compatibility hacks
- Better Than Roadlink-Style Adapters: The cleanest, most effective way to go wide-range on GRX without compromises
- Lightweight & Rigid Construction: Weighs just 37g and CNC-machined from high-grade 7075-T651 aluminium
- Compatible with Oversized Pulleys: Best paired with Garbaruk’s 11T+16T pulley wheels for maximum performance and visual impact
- CNC Precision-Machined: Built in Poland with Garbaruk’s signature quality
Pro Bike Mechanic’s Tip
Want the full Garbaruk effect? Match this derailleur cage with Garbaruk’s wide-range 11-speed cassette and a set of oversized pulleys for a drivetrain that climbs better, shifts smoother, and turns heads.
🚀 Ready to Ride?
Don’t let your derailleur hold you back. Garbaruk’s Rear Derailleur Cage for Shimano GRX Di2 11-speed turns your electronic gravel groupset into a wide-range powerhouse. Lightweight, sleek and expertly engineered, it’s everything your drivetrain’s been waiting for.
Technical Details
- Material: 7075-T651 Aluminium Alloy
- Manufacturing process: CNC-milled
- Weight: 37g
- Finish: Anodised
- Derailleur compatibility: Shimano RD-RX817 (GRX Di2 11-speed 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 Di2 11-speed fit?
A: This cage is made specifically for Shimano’s GRX Di2 RD-RX817 11-speed rear derailleur.
Q: Does the Garbaruk Rear Derailleur Cage for Shimano GRX Di2 11-speed fit mechanical GRX derailleurs?
A: No. It will not fit mechanical GRX models. That’s what the mechanical Garbaruk Rear Derailleur Cage for Shimano GRX 11-speed model is for.
Q: Can I use this to fit a 50T cassette on my GRX Di2 bike?
A: Yes! That’s exactly what it’s designed for: to give your RD-RX817 rear derailleur the clearance it needs to run a cassette up to 50T.
Q: Why would I want to run a bigger cassette on my gravel 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 terrain you want.
Q: What’s the difference between this and a roadlink-style adapter?
A: Unlike roadlinks, which simply drop the derailleur lower (often with mixed results), the Garbaruk cage actually changes the pulley path for improved shifting and reliable performance across the full cassette. It’s a game-changer.
Q: Do I need new jockey wheels for my Garbaruk rear derailleur cage?
A: You can run a Garbaruk derailleur cage with your old, boring jockey wheels, but we 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.
-
Hurry, only 2 items left in stock!
Three reasons to shop at BMCR Gear
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.