Gates Carbon Drive CDX CenterTrack Front Sprockets (Black) (130mm BCD) (Single) (For Tandem) (69T)

Gates Carbon Drive CDX CenterTrack Front Sprocket. Features: Superlight machined aluminum sprocket with CenterTrack guide ridge Available in two standard bolt circle configurations to fit most cranks, with specific version for Shimano Di2 specific chainline offset and tandem specific drivetrains Compatible only with CDX CenterTrack belts Visit http://www.gatescarbondrive.com/ or download the Gates Carbon Drive iPhone app for drivetrain calculations and tension analysis Specs: BCD:130mm tandem Teeth:69t