描述

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.