Shimano RD-M9250 Di2 Wireless XTR 12-Speed Rear Derailleur

The Shimano RD-M9250 Di2 Wireless XTR 12-Speed Rear Derailleur delivers precise wireless shifting, high durability, and low-maintenance performance. It features Shadow ES technology with a compact, impact-resistant design and a zero-maintenance spring system that enhances chain stability. Built with a mix of carbon fibre and cold-forged alloy components, it offers reduced weight, increased ground clearance, and reliable drivetrain control in rough conditions.

Key Features and Benefits:

• Wireless Di2 shifting system with integrated removable battery: Offers accurate, cable-free performance while protecting the battery inside the linkage. This results in cleaner installs, easier maintenance, and a more durable system in off-road conditions.
• Shadow ES technology with low-profile skid plate and compact GS mech: Minimises derailleur exposure and increases ground clearance by 23mm. This design reduces the chance of rock strikes, enhancing both protection and shifting consistency.
• Dual spring chain stabilising switch: Uses a two-spring mechanism with 70% more spring force to reduce chain bounce and improve sprocket engagement. This keeps shifting firm and secure, even over rough terrain.
• Crash recovery function: Allows the derailleur to absorb impacts and return to position without manual realignment. This helps maintain performance and reduces post-crash adjustments.
• 13T solid pulleys with reduced tension in low gears: Ensures smoother pedalling and less wear by lowering chain tension under load. This reduces drivetrain noise and enhances gear longevity.
• Carbon fibre and cold-forged alloy construction: Combines lightweight materials with reinforced structure. This delivers a strong, responsive shifting system that holds up to aggressive riding.

Built for riders who need flawless performance under pressure, the RD-M9250 is engineered to maintain stability and precise gear changes through all terrain. The tighter chain wrap and zero-maintenance dual-spring setup reduce the chances of skipping or derailment as the drivetrain wears, giving confidence during long-term use. The wireless format and internal battery setup also streamline setup and eliminate common maintenance issues linked to cable routing or wear.

Upgrade your drivetrain with technology built for speed, durability, and control. Designed for 12-speed systems and built for serious off-road riding, this derailleur combines reliable performance with long-lasting build quality.

Please Note: The battery is sold separately.