Bottom bracket: The bearing system the pedals (and cranks) rotate about. Has a spindle to which the crankset is connected and also the bearings them selves. You will find there's bearing surface around the spindle, and on Each individual on the cups that thread to the frame. A bushing can https://bikeenginekit16642.is-blog.com/41584980/how-much-you-need-to-expect-you-ll-pay-for-a-good-bike-party-baltimore