Shimano GRX RX827 Di2 1X12 Speed – Shimano’s First Fully Wireless Gravel Groupset
Gravel riders have been waiting for this moment — and it’s finally here. The all-new Shimano GRX RX827 Di2 has landed, bringing Shimano’s first fully wireless gravel drivetrain to the scene.
If you’ve been dreaming of clean builds, lightning-fast shifting, and the reliability that Shimano is known for, the RX827 might just be the upgrade you’ve been waiting for.
What’s New with RX827
The RX827 is a 1x12-speed wireless groupset, designed to give gravel riders simplicity, durability, and performance without compromise. Here’s what makes it stand out:
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Fully Wireless Design – No wires, no junction boxes, no central battery. Just smooth, cable-free shifting.
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All-New RX827 Rear Derailleur – The heart of the system, with its own rechargeable battery offering 435–621 miles per charge.
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Shadow ES Dual-Spring System – Stronger chain control and retention, even on rough terrain.
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Automatic Impact Recovery – If you clip a rock or get a knock, the derailleur resets itself back to the last gear.
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1x-Specific Left Lever – The new BL-RX825 brake-only lever gives true 1x setups a clean and lightweight option.
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Right-Hand Dual Control Lever – Keeps the familiar three-button design, fully programmable via Shimano’s E-Tube app.
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Cross-Compatibility – Works across Shimano’s 12-speed Di2 family (road, gravel, and MTB), giving riders modular options for custom builds.
Why You Will Love It
Shimano’s groupsets have always been loved for their reliability, but with gravel riding growing so fast, the demand for wireless tech has only grown louder. With RX827, Shimano delivers:
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Simplicity – No front derailleur to fuss with, and fewer moving parts to worry about.
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Durability – Inspired by Shimano’s MTB tech, the new derailleur is built to handle impacts and harsh conditions.
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Performance – Shifting is lightning-fast, precise, and fully customisable.
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Versatility – Whether you’re racing, bikepacking, or just chasing weekend adventures, RX827 adapts to your riding style.
This is Shimano’s answer to SRAM’s XPLR and Classified’s Powershift, but with Shimano’s trademark focus on refinement and cross-compatibility.
The Build
Included in the new GRX RX827 groupset:
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RX827 rear derailleur (with battery)
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RX825 right dual-control lever + BL-RX825 left brake-only lever
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GRX 1x crankset (40T or 42T)
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10–51T 12-speed cassette XT M8200 recommended
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Shimano 12-speed CN-M8100 Chain
It’s simple, modular, and designed to be built up exactly how you want it.
Why Riders Are Excited
Grand Fondo Magazine calls it a “small but significant step toward greater modularity and a more future-proof ecosystem,” highlighting the move to wireless and the potential for mullet setups.
Cycling Weekly praises its fast, crisp, and reliable shifting, noting that gears move smoothly up and down the cassette and can be fine-tuned in the E-Tube app. They also appreciate the GRX ecosystem’s modularity, which allows riders to blend Dura-Ace, XTR, and GRX components into custom builds.
BikePacking.com adds that the RX827 is ideal for adventure-focused gravel riders, offering smooth, efficient shifting, great ergonomics, and a well-protected battery system.
Price & Availability
The Shimano GRX RX827 Di2 is in stock now and available from us at £799.99 when added to a build.
This isn’t just another groupset — it’s the moment Shimano finally goes wireless. If you’ve been holding out for a fully wireless gravel setup, the wait is over.
Ready to Ride Wireless?
The Shimano GRX RX827 is available now — contact us today to add it to your next custom build, or speak to our team about upgrading your current bike.
