Bottom bracket: The bearing system that the pedals (and cranks) rotate close to. Includes a spindle to which the crankset is connected as well as the bearings on their own. There's a bearing surface area around the spindle, and on Every from the cups that thread into the frame. In https://devinwmxlw.blogaritma.com/33246746/bike-parts-honda-no-further-a-mystery