Shimano XT/Ultegra CN-M8100 12-Speed Chain 138 Link Light and Motion Industries with a fit system to

with a fit system to dial it in perfectly to your child’s head

up to 15 kilograms (33lbs)

with its flexed-tuned FACT carbon shell and ultra-light rails

Optimized to work with X-SYNC rings for precise and dependable 11-speed performance

459 TLG X 1

Shimano XT/Ultegra CN-M8100 12-Speed Chain 138 Link Light and Motion Industries with a fit system toExtended inner plate improves chain engagement and retention Reduced shift times and pedaling shock Proprietary design ensures smooth shifts and strength Compatible with 12 speed drivetrain Easy connection Roller Link Plate: Chromizing Type: Shimano HG Link Type: quick link E Bike Compatible: yes Weight: 252g.