Bottom bracket: The bearing system that the pedals (and cranks) rotate all over. Incorporates a spindle to which the crankset is attached and also the bearings by themselves. There exists a bearing surface area within the spindle, and on each with the cups that thread in to the frame. The https://sergiogxktd.life3dblog.com/33915890/everything-about-predator-ghost-mini-trike-kit