Der Part Shimano RD-R9100 11-Speed Tension/Guide Pulley Set

System supremacy

System engineering at its peak.

Dura-Ace: Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That's how it achieves supremacy.

Key Features

• Shifting precision and a quieter drivetrain
• Freely spinning pulleys mean less wattage goes to overcoming bearing drag
• OEM pulley set for Dura-Ace rear derailleurs

Features

Shimano Dura-Ace

Shimano Dura-Ace is system engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output - that's how Dura-Ace achieves drivetrain supremacy.

Specifications