In order to guarantee impeccable, reliable performance even with bigger cassettes, precision shifting by front and rear derailleurs has seen design of a 12-speed chain entailing huge research and development efforts to make it as reliable and long-lasting as an 11-speed chain, despite being narrower than the latter. The new 12-speed Chorus groupset benefits from a new Chorus 12 chain that ensures the same reliability and the same performance levels as that of the Super Record category.
Width from 5.15 mm
Faster lighter shiftiing
Extremely high performance levels and durability over time
Pins aligned with the external surface
Smoothness and precision
Unchanged resistance to wear and tear
A lighter, narrower chain than the 11-speed, but just as durable
Optimum performance in line with the design of the teeth on the sprockets and crowns
Top-level smoothness and less dispersion.