What Our Gearhead(R) Experts Are Saying: "I refreshed my 2x drivetrain with these Turbine rings and it completely transformed my shifting. They're whisper-quiet, durable, and shift flawlessly even under load-proof that Race Face still makes some of the best chainrings in the game."We count on the Race Face Turbine 104/64 BCD Chainrings to deliver crisp, consistent shifting no matter the terrain. Built from CNC-machined 7075 aluminum, these rings strike the perfect balance between lightweight performance and long-term durability. Their refined tooth profiles and precision shift ramps make gear changes smooth and silent, even when we're grinding up steep singletrack or hammering through fast descents. Whether we're swapping in a smaller inner ring for big climbs or refreshing a worn outer to bring back that factory-new drivetrain feel, the Turbine series delivers the kind of quiet confidence we expect from a premium setup. Designed for 4-arm 104/64 BCD 2x cranksets and 11-speed drivetrains, they slot right in to keep us pedaling smoothly through every ride.