Superlight machined aluminum sprocket with CenterTrack guide ridge . Available in two standard bolt circle configurations to fit most cranks, with specific version for Di2 specific chainline offset and tandem specific drivetrains . Compatible only with CDX CenterTrack belts . Visit https://www.gatescarbondrive.com/ or download the Gates Carbon Drive iPhone app for drivetrain calculations and tension analysisTandem belt drive ring is not compatible with Gates Carbon Drive non-Tandem product. Constructed of 6061 aluminum. 11mm pitch. CDX CenterTrack belts, cogs and rings do not interchange with any part of a CDC/CDX MudPort system. Item Specifications: Chainring BCD, 130mm Tandem, Teeth, 66t, Model Name, CT08665AA,.
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