Shimano RD-M8250 Di2 Wireless Deore XT 12-spd rear mech without battery

Name: Shimano RD-M8250 Di2 Wireless Deore XT 12-spd rear mech without battery
Brand: Shimano
SKU: RDM8250GSz
Price: 386.99 GBP
Availability: LimitedAvailability

Ultimate Precision & Performance: The Shimano XT Shadow ES 12-Speed Rear Derailleur

Experience a new benchmark in mountain bike performance with the Shimano XT Shadow ES 12-Speed Rear Derailleur. This top-tier wireless derailleur delivers the ultimate in clean, precise, and durable shifting for the trail, eliminating cables for a flawless experience. Designed to be incredibly robust, intelligent, and responsive, the XT Shadow ES is a cornerstone of a high-performance drivetrain.

Built for the most aggressive riding, it combines a super low-profile design with advanced technology, including a crash recovery function and a dual-spring chain stabiliser, ensuring a smooth, quiet, and reliable ride in all conditions.

The Shimano XT Shadow ES 12-Speed Rear Derailleur is the ultimate upgrade for any rider seeking a flawless, high-tech, and incredibly durable drivetrain that is ready for anything the trail can throw at it.

CHOOSE SIZE

GS - medium (for 9-45T Cassette)

SGS - long (for 10-51T Cassette)

was £429.99

Price (select options)

£386.99

e: / t: 01323 737320

THE DETAIL

Wireless Shifting with Integrated Power: The derailleur offers the freedom and simplicity of wireless shifting, powered by an integrated, removable battery (BT-DN320 sold separately) that is protected within the linkage. Communication is handled via BLE and ANT private for a secure and reliable connection.

Intelligent Crash Recovery: Engineered for real-world trail riding, the derailleur features a crash recovery function. In the event of an impact, the system absorbs the force and automatically returns to its original position, helping to prevent damage and keep you riding without interruption.

Advanced Shadow ES Stabilisation: A dual-spring chain stabilising switch drastically reduces chain bounce on rough terrain, providing a more stable and secure drivetrain. This unique structure creates a tighter chain wrap, increasing spring force by 70%. It ensures the chain meshes firmly with the sprockets and prevents skipping, even as cogs wear.

Lightweight & Robust Construction: The derailleur features a super low-profile skid plate design and an optimised slant angle for maximum clearance. The alloy outer and inner pulley cages reduce weight while increasing rigidity, while the cold-forged, wide alloy links and pivot body provide exceptional strength and durability.

Zero Maintenance: The Shadow ES system is designed for zero maintenance, ensuring that shifting performance remains crisp and consistent over time, allowing you to focus on the ride rather than making adjustments.

Choice of Gearing: The XT Shadow ES is available in two cage options to match your gearing needs perfectly:

GS (medium) cage: This compact design offers more ground clearance (-23mm) and saves weight, making it the perfect choice for riders using a 9-45 tooth cassette who prioritise agility and a tighter gear range.

SGS (long) cage: With its more expansive reach, the SGS cage is designed for riders who need the expansive gear range of a 10-51 tooth cassette, ensuring you have the right gear for any climb or flat-out sprint.

SPECIFICATIONS

XT Shadow ES 12-speed wireless rear derailleur for the ultimate in shifting performance and durability
Precise and clean wireless shifting with an Integrated on-board removable battery (BT-DN320 sold separately)
The integrated removable on-board battery is protected within the linkage
The crash recovery function absorbs impacts and returns to its original position
Connectivity BLE, ANT private
Shadow ES features a super low-profile skid plate design and optimised slant angle for optimal clearance
Shadow ES uses a dual spring chain stabilising switch that, when on, will reduce chain bounce in rough terrai,n maintaining a more stable drive and shifting
The Shadow ES system is also zero maintenance and has no degradation of performance
Unique structure using two springs has a tighter chain wrap that improves shifting and security with increased spring force by 70%, allowing the chain to mesh firmly with the sprocket
With the tighter chain wrap, skipping is prevented even as the cogs wear
13T solid pulleys and decreased derailleur tension prevent high chain tension in low gears
Alloy outer and inner pulley cage saves weight and increases rigidity
Cold forged wide alloy links and pivot body
Fluorine-coated link pin bushings
Specifically designed to work with 12-speed drivetrains
Product Type   Rear Derailleurs
Speed   12 Speed
Discipline   MTB
Colour   Black
Size 9-45 tooth compatible GS cage & 10-51 tooth compatible SGS cage
Di2   Yes