The Shimano ST-R7020 Bleed Screw and O-Ring set is a critical component for maintaining the hydraulic braking system of your Shimano 105 ST-R7020 shifters. Designed for precision and durability, this set ensures your braking system remains sealed and efficient. Tailored for ST-R7020 Shifters: This bleed screw and O-ring set is specifically crafted to fit Shimano 105 ST-R7020 hydraulic shifters, ensuring seamless compatibility and a perfect fit for optimal performance. Reliable Hydraulic Sealing: The included O-ring provides a secure seal to prevent fluid leaks during and after bleeding. This ensures the integrity of your hydraulic system and consistent braking performance. Durable and Long-Lasting Construction: Made from high-quality materials, both the bleed screw and O-ring are built to withstand regular use and the demands of hydraulic braking systems. Their robust design ensures long-lasting reliability. The set is straightforward to install, making it ideal for routine maintenance or replacing worn components. Keeping your bleed system in top condition ensures safe and effective braking on every ride.