Silky driving, accurate shifting. HG-X11 directional chain realize more smoother shifts and greater overall performance. Right and left sides are optimized for front and rear shifting respectively.
Sil-TecåÊis Shimano's new ultra-low friction surface treatment.
Superior to simple coating, Sil-Tec is an advanced plating process that improves system performance through the smoother and wear longer in all conditions.