Specifications Hign-concerned Chemical:None Model Number:HG601 11-speed Chain CN-HG601 with Quick-Link HG-X11 directional chain realize more smoother shifts and greater overall performance. Right and left sides are optimized for front and rear shifting respectively. Silky driving and accurate shifting: CN-HG601 11-speed Chain with Quick-Link Connector With an HG-X11 special asymmetric plate design and 's new SIL-TEC surface treatment, a quieter ride, increased chain life and better performance await you. Features Connector Quick-Link For the mounting and dismounting of 11-speed chains without tools No tools necessary to install Allows for quick and easy maintenance For 11-speed chains Product features Use: Road, MTB, E-Bike Model: CS-HG601 Group: 105 Gear: 11-speed Type: HG-X11 Directional design: Yes Chromizing Treatment Link Pin: Yes Pin Link Plate: Grey Roller Link Plate: SIL-TEC Connector: Quick-Link SM-CN900-11 Links:116 Compatibility Dura Ace R9100 Dura Ace 9000 Ultegra 6800 105 5800 XTR M9000/9020 XT M8000/8020 SLX M7000-11 11-speed E-Bike (STEPS E6000/8000) Weight approx 260g (116) Scope of delivery 1 11-speed Chain CN-HG601 incl. Connector Quick-Link SM-CN900-11