Shimano STEPS E8000 11-speed, Super Narrow, Hyperglide, SIL-TEC treated E-Bike chain|For use with the SHIMANO STEPS E8000 group, the HG-X11 chain features SHIMANO's SIL-TEC surface treatment on the pin and roller link plate for improved durability on 11-speed drivetrains|Special surface treatment on “pin and roller link plate”|Durability improved by 50% or more (vs. CN-HG701-11)