These direct mount chainrings coincide perfectly with the Comet Modular Crank. The megatooth design allows you to put all of your power through without worrying about dropping your chain. Precision CNC machined AL7075/T6. Long tooth profile enhances chain retention. Thick-Thin tooth design for maximum chain engagement. Anodized black with laser etched logos. Item Specifications: Direct Mount Type: Direct Mount , Tooth Count: 28, Drivetrain Speeds: 11, Defined Color: Black, Material: Steel, Ring Position/Type: Inner, Round or Oval: Round,