Product Details
Shimano 827 GRX Di2, 12-Speed Shadow ES Rear Derailleur
The new Shimano GRX 827 Di2 12 speed Shadow ES Rear Derailleur features a fully wireless, removable battery for fast, reliable shifting and convenient recharging on mixed terrain.
Equipped with integrated Shadow ES technology, it delivers precise gear changes even over rough ground, while the low-profile skid plate design helps avoid contact with rocks and roots. The latest chain stabiliser system offers improved chain wrap for better shifting performance, enhanced chain security and quieter operation. Designed for durability, it requires no maintenance and ensures consistent performance over time.
Please Note: Battery Not Included
Features
- Dual Spring Chain Stabiliser
- Crash Recovery Function
- Replaceable Alloy Cage
- Solid Pulley
- Removable Battery
- Max 51T
- UDH Compatible
Highlights
- Fully Wireless
- Dual Spring Chain Stabiliser
- Crash Recovery Function
- Removable Battery
Specifications
- Discipline Compatibility
- Gravel
- Family
- Shimano GRX
- Max Tooth Capacity
- 51
- RD [Maker]
- Shimano
- RD [Model]
- GRX 827 Di2
- Speed Compatibility
- 12-speed
- Product code
- 1929832 / 54308389880154
Reviews
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
1 question
Does this include battery and charger?
No answers yet.
About Shimano
Shifting the way the world rides.
From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.
Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.





