The HS-B-25-P BMC replacement headset kit includes FSA stainless steel bearings, a compression split ring, and a conical spacer.

This kit contains: H2430 (conical spacer 10mm) | H2318 nylon compression split ring | MR042S stainless, upper bearing | MR110S stainless lower bearing
Features
Included in the Box:
H2430 (conical spacer 10mm) | H2318 nylon compression split ring | MR042S stainless upper bearing | MR110S stainless lower bearing