Base bracket: The bearing system the pedals (and cranks) rotate about. Includes a spindle to which the crankset is attached plus the bearings themselves. There exists a bearing surface over the spindle, and on Each and every on the cups that thread in the frame. Commonly, They may be curved https://bikeengineoilchangekm25791.alltdesign.com/considerations-to-know-about-bike-parts-pedal-54100211