This is a genuine Greenfield Evolution sprocket. It has 11 teeth with a 3/16" keyway.
Inside Diameter (in): 5/8"
Keyway Size (in): 3/16"
Teeth: 11
Fits: Greenfield Evolution 3 MK2 13-32 Deluxe, 13-32 Standard, 11.5/30 models. Evolution 3 MK2A 13-32 Deluxe, 13-32 Standard, 8.5/30, 11.5/30 models, Evolution 2000 (e2000) MK2 13-32, 16-32 models. Evolution 2000 (e2000) MK2A 13-34, 16-34 models.
Standard Pack Quantity: 1