Base bracket: The bearing system that the pedals (and cranks) rotate around. Contains a spindle to which the crankset is connected as well as the bearings themselves. You will find there's bearing surface area on the spindle, and on Each individual on the cups that thread in to the frame. https://bikeengineflush15804.tinyblogging.com/chair-lift-service-and-repair-near-me-no-further-a-mystery-78697900