CS-R8101 Ultegra Cassette

Product Information

The Shimano Ultegra CS-R8101 12-Speed Cassette is a significant upgrade for any road cyclist looking for precise and seamless gear changes. This cassette integrates Hyperglide+ technology, previously proven in MTB, to deliver smooth upshifts and downshifts even under heavy pedaling load. You'll experience consistent performance whether you're climbing, sprinting, or cruising, allowing you to maintain focus and cadence without interruption. It's built for efficiency and offers refined gear combinations to optimize acceleration in every situation.

Features

• Hyperglide+ technology ensures fast, seamless shifting under maximum pedaling force.
• Refined 12-step gear combination provides peak efficiency and accelerating performance.
• Compatible with both new 12-speed and existing road 11-speed FREEHUB bodies.
• Suitable for both electronic (Di2) and mechanical shifting systems.

Specs

• Gearing: 12-speed
• Gradations: Available in 11-30T (11-12-13-14-15-16-17-19-21-24-27-30T) and 11-34T (11-12-13-14-15-17-19-21-24-27-30-34T).
• Sprocket Material: Steel (nickel plated).
• Spider Material: Aluminum (for sprocket carriers).
• Weight (manufacturer's specification): Approximately 291g (11-30T), 345g (11-34T).
• Freehub Compatibility: Shimano Road (11-speed and 12-speed).