Sleeves are fitted at each of the middle and lower sections. They are end caps on the aluminum to help prevent debris from getting inside the shafts above it. Sleeves are not meant as a grip for tightening your shafts.
Sleeves are fitted at each of the middle and lower sections. They are end caps on the aluminum to help prevent debris from getting inside the shafts above it. Sleeves are not meant as a grip for tightening your shafts.