The Shimano ST-R9120 Diaphragm Set (Left and Right) is a high-quality replacement component designed for maintaining the optimal performance of your Shimano Dura-Ace ST-R9120 hydraulic shifters. This diaphragm set ensures proper functionality and reliability of the braking and shifting systems.

Tailored for Dura-Ace ST-R9120 Shifters: Specifically engineered for Shimano Dura-Ace ST-R9120 hydraulic shifters, this diaphragm set provides a precise fit. It plays a critical role in maintaining the integrity of the hydraulic system, ensuring smooth operation and consistent performance.

Durable and Long-Lasting Material: Made from robust and high-quality materials, these diaphragms are designed to withstand the demands of regular cycling. Their durable construction ensures long-lasting performance, even in challenging conditions.

Maintains Hydraulic Performance: The diaphragm set helps preserve the internal pressure and fluid integrity of the hydraulic system, ensuring reliable braking and smooth shifting. This is crucial for maintaining safety and efficiency during rides.

Whether you're replacing worn-out components or conducting routine maintenance, the Shimano ST-R9120 Diaphragm Set is an essential part for ensuring your shifters remain in top condition.