Chorus™ 11-speed's shifting precision is comparable to its older siblings Record™ and Super Record™.

Technical specifications

• Upper to lower pulley-axle: 55 mm
• Composite outer plate
• Parallelogram with 11s geometry
• Black anodized forged aluminium upper body
• Lightened special rubber pulleys

Features and benefits

• REAR DERAILLEUR FIXING BOLTS IN ALUMINIUM: with the same resistance and stiffness, the new two-part system makes it possible to reduce the weight by 53% compared to steel and 22% compared to titanium ? prolongs the component life.
• CARBON FIBRE FRONT PLATE: the body of the front plate wraps the upper and lower parts, providing 150% more torsional stiffness compared to a traditional rear derailleur.
• ULTRA-SHIFT™ EXCLUSIVE GEOMETRY PARALLELOGRAM: maximum derailleur stiffness, fast shifting, precision, reduction of possible play
• ULTRA-SHIFT™ ALUMINUM LOWER AND UPPER BODY: lower weight ? rigidity ? friction reduction - longer component life.
• Cage plate with holes for reducing weight: lighter weight: 186 g.

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