Base bracket: The bearing system the pedals (and cranks) rotate around. Contains a spindle to which the crankset is hooked up plus the bearings them selves. You will find a bearing surface area on the spindle, and on Each individual on the cups that thread in to the frame. The https://marcoglprv.prublogger.com/34146251/5-easy-facts-about-bike-part-out-described