SRAM XX1 Eagle Chain - 12-Speed 126 Links Gold 18.5x9.4x3.9 Compatible with all available K-Edge

Compatible with all available K-Edge accessory mount inserts

} SRAM Rival X-Sync Direct Mount Road Chainring - 42t 12-Speed 8-Bolt Direct Mount 6

Wave Spring And Bearings DS And NDS)

A clutch style rear derailleur will be best for chain security

}Park TSB-2

SRAM XX1 Eagle Chain - 12-Speed 126 Links Gold 18.5x9.4x3.9 Compatible with all available K-EdgeThe chain is the heart of the Eagle drive train completely re engineered for 1x systems and the innovative X Sync 2 chainrings. It offers longer wear with less friction and less noise than previous SRAM chains. Flowlink design eliminates square edges on outer plates to reduce friction and wear Recessed chain rivet contact area allows ultra high joining strength with zero pin protrusion PowerLock non reusable connecting link is included Titanium