Bicycle bottom bracket has bearing passage area which passes through bearing set, whose inner diameter is smaller than inner diameter of bearing fixing area positioned axially relative to inside of bearing passage area

摘要

The bracket (10) has a load bearing component (24a) with suspension bracket section having outer surface configured to be inserted into opening end (12a) of suspension element. A bearing fixing portion has inner surface in which the bearing set (22b) is inserted. The inner surface includes a bearing passage area that passes through bearing set in pressed-in state. The bearing fixing area is positioned axially relative to the inside of bearing passage area and fixed to the bearing set. The inner diameter of bearing passage area is smaller than inner diameter of bearing fixing area.