Shimano Front/rear derailleur XTR RDM9250UPGKIT

Rear derailleur (Di2 specification): RD-M9250 (Number of rear speeds: 12; Compatible chain: HG 12 speeds; Large cog: max. 45 teeth (GS) / 51 teeth (SGS), min. 45 teeth (GS) / 51 teeth (SGS); Small cog: max. 9 teeth (GS) / 10 teeth (SGS), min. 9 teeth (GS) / 10 teeth (SGS))
Gear lever (Di2): SW-M9250
Battery: BT-DN320 (Capacity: 2.32 Wh; 0.305 Ah)
Battery charger: EC-DN100
Quick link: SM-CN910-12

Features

• -Wireless Di2 12-speed transmission for quick, clean, and ergonomic installation
• -Designed for mountain bikers looking for better gear shifting performance without having to replace the entire group
• -A more cost-effective solution that avoids changing the whole group
• -Simplifies installation and ensures long-term compatibility
• -The lightest and most rigid setup thanks to the carbon chassis