The all new Turbine 11 Speed rings are ready to ride. Completely redesigned from the ground up, these rings shift like nothing else. The Turbine rings are machined from 7075 aluminum, so they are built to last. Rings are CNC\'d from 7075 alloy, creating a ring with instantaneous smooth and quiet shifting, even under load. These 2x rings are super stiff at a minimal weight, resulting in a ring that demonstrates sharp and quick shifts while being highly resistant to impacts. Built for: XC. Colour: Black. Ring Configuration: 11 spd ÔÇô 24/34 (104/64BCD). 11 spd - 26/36 (104/64 BCD). 11 spd ÔÇô 28/38 (104/64BCD). Rings are available individually or as sets. *Do not run rings in other than the listed combinations.