RaceFace Turbine Chainrings are designed for optimal shifting performance and minimal weight, in 11-speed off-road applications.Sold as a setAsymmetrical tooth profiling and up-shift/down-shift zones create smooth and quiet shifting under loadThree times stiffer than Race Face Team chainrings without additional weight gainCNC-machined from 7075 aluminumItem SpecificationsChainring BCD104Chainring BCD64ColorBlackDefined ColorBlackDrivetrain Speeds11MaterialAluminumRing Position/TypeInnerRing Position/TypeOuterTooth Count26Tooth Count36