Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag. We've designed a fresh cup forging for a high-end look. A new standard in external bearing performance.
One Chain for All|100% Compatibility On All Leading Derailleur Systems
Asymmetrical Chamfering Avoids Interference
Added Chamfering for Smooth Operation
Impeccable Precision|Phenomenal Shifting Performance