Gates Carbon Drive

21T 9 Spline CDX Black

Product Line: CDX
Product Type: Rear Sprockets
Fitment: Freehub 9-Spline
Finish / Color: Black
Part Number: BF1121S9HB
Tooth Count: 21
Mounting Style: 9-Spline
Pitch: 11
Material: Chromoly
Notes: Fits any Shimano style freehub body

* Photos may be representative only.