Brake Piston (Ceramic & Rubber) — Compatible with R7070, R8070, R9170, RS785, RS80 Key benefits Reliable braking under heat: Ceramic construction improves heat dissipation to reduce brake fade during long descents and heavy use. Consistent, predictable performance: Designed to maintain stable braking power and modulation for safer, more controlled stops. Durable and service-ready: Ceramic and rubber materials resist high temperatures and wear, extending service intervals and protecting seals. What it does Replaces or upgrades the piston inside your hydraulic caliper to restore or improve braking consistency. Works with hydraulic systems to keep pad movement smooth and responsive, preventing uneven pad retraction or sticking. Compatibility and fit Specifically suitable for hydraulic calipers on models: R7070, R8070, R9170, RS785, RS80. Intended for direct installation into the listed calipers (verify model fit on your bike before installation). Materials and construction Ceramic piston: better thermal stability and lower thermal expansion than standard metals, aiding consistent braking under load. Rubber components: provide sealing and damping to maintain hydraulic integrity and reduce contamination ingress. Package contents 1 brake piston ready to be installed in your bicycle’s hydraulic caliper for improved performance and reliability on the road or trail. Practical use scenarios Long road descents: Keeps braking consistent when heat builds up during extended downhill sections. Routine caliper service: Replace worn or contaminated pistons during maintenance to restore smooth pad movement and prevent rubbing. Trail or mixed-surface rides: Provides reliable modulation in variable conditions where consistent braking feel matters. Notes for users Intended for use with hydraulic braking systems and the listed caliper models only. Confirm compatibility with your specific setup before installation. Follow manufacturer torque and bleed procedures when reinstalling caliper components to ensure safe operation.