Black Bearing HB-D16 42x52x7mm 45/45 headset bearing

Black Bearing HB-D16 42x52x7mm 45/45 headset bearing.

Features

• Steel (standard)
• “2RS” seals: state-of-the-art double-lip labyrinth seals. Improved water and dust resistance combined with low friction.
• Ground channels for improved smoothness and longer service life.
• Superior quality lubricant.
• High quality balls, labelled “abec 5”.