Shimano ST-R9120 Diaphragm for Dura-Ace Hydraulic Lever

Maintain optimal braking performance with the Shimano ST-R9120 Diaphragm, a genuine replacement component designed for Shimano Dura-Ace hydraulic STI levers. This internal reservoir diaphragm helps regulate hydraulic fluid pressure while preventing air contamination, ensuring consistent and reliable brake modulation.

Essential for servicing or rebuilding Shimano Dura-Ace R9100 series hydraulic levers.

Key Features

• Genuine Shimano service replacement part
• Designed for ST-R9120 hydraulic STI lever
• Maintains proper hydraulic fluid pressure
• Prevents air ingress into reservoir system
• Ensures consistent brake performance
• Precision-fit OEM component

Technical Specifications

• Model Compatibility: ST-R9120
• Series: Shimano Dura-Ace R9100
• Type: Hydraulic Reservoir Diaphragm
• Application: Road Hydraulic Disc Brake Lever
• Position: Internal Lever Component

Compatibility

• Shimano Dura-Ace ST-R9120 hydraulic STI lever
• Shimano Dura-Ace R9100 series road hydraulic systems

(Verify exact lever model before purchase.)

Ideal For

• Professional bike mechanics
• Hydraulic brake servicing
• Lever overhaul and maintenance
• Restoring braking consistency

Why Use Genuine Shimano Service Parts?

Original Shimano internal components ensure precise fit, reliable sealing, and long-term durability. Using genuine diaphragms maintains proper hydraulic function and preserves the performance standards of high-end Dura-Ace systems.

Additional Information

• Country of Origin: Japan / Malaysia
• Imported By: Shimano South Asia Pvt Ltd., 19, (Ground Floor) Kumara Krupa Road, Bangalore – 560001, Karnataka, India
• Customer Care Address: Chanduram Road, H No.335, Janta Chowk, Main Bazaar, Jaripatka, Nagpur (MH) – 440014
• Customer Care Email: ashamallnagpur@gmail.com
• Commodity: Bicycle Brake Lever Spare Part
• Net Quantity: 1 Piece