SHIMANO XTR RD-M9120 12-speed rear derailleur Front derailleur EXTREMELY WARM AND WINDPROOF:

EXTREMELY WARM AND WINDPROOF:

which can quickly dissipate heat

Aviation-grade aluminum is stronger and less likely to break

WATERPROOF: The bag is waterproof and material EVA and the zipper help

Material: Thermal

SHIMANO XTR RD-M9120 12-speed rear derailleur Front derailleur EXTREMELY WARM AND WINDPROOF:Group: XTR Series: M9100 Model: RD M9120 Technology: Top Normal Rear switching stages: 12 fold Rec. Chain: CN M9100 Total capacity: 41 teeth Max. Difference in front: 10 teeth (only for 2 speed) Max. largest sprocket: 45 teeth Min. largest sprocket: 45 teeth Max. smallest sprocket: 10 teeth Min. smallest sprocket: 10 teeth Area of application: MTB