Fluidity, smoothness, and noise reduction: the 5.5mm Chorus™ chain fully meets the quality and performance standards of the 11-speed™ groupsets.

The strength of the treated steel links is absolute, and the Ultra-Link™ closure system guarantees safety and the long life of the chain.

Technical Specifications:

• width 5.5 millimetres 

• Ultra-Link™ fastening system 

• external links in special new steel 

• Ni-PTFE anti-friction treatment

• 2.24g /per link