This SRAM 11-speed outer chainring was developed for the Rival crankset to be optimized with it's X-GlideR chainrings for Yaw front derailleur shifting. The stiffer rings (5mm 7075-T6 aluminum CNC-machined) feature upshift rivets with an advanced design adopted from SRAM XX. CNC machining allows for precision control of each tooth shape, ramp, and nearly every shifting feature of the chainring. The chainrings, chain, and front derailleur are designed as a single integrated system for optimized performance as SRAM has now completed its own journey to incredible shifting as a result of applied, integrated engineering. Every one who rides Yaw drievtrains remarks at how well the system shifts compared to past offerings. This outer ring is just one component in the system.