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.
width 5.5 millimetres
Ultra-Link™ fastening system
external links in special new steel
Ni-PTFE anti-friction treatment
2.24g /per link