Product Description : 1. Double X design: Quickly capture speed changes, speed changes faster, more stable and easier 2. Hi-Performance, Extremely Durable 3. Phenomenal Shifting Performance, Asymmetrical Chamfering Avoids Interference for Smooth Operation 4. light weight shorter length pins combine with high-grade materials to reduce weight 5. Unique stretch-proof treatment, the durability has been effectively enhanced by reducing the attrition between inner plates and pin. As a result of this, chain life has been significantly improved Model: X8/X9/X10/X11/X12 Comes with Magic Button Shift Steps: 8/9/10/11/12-speed Size1/2" X 3/32"1/2" x 11/128" Pin Length: 7.3mm/6.6/5.2mm Link116/118 Links Directional design: None Connector: Missing Link Compatibility: For SHIMANO, For SRAM .
