Abstract: A bicycle includes a front wheel and a rear wheel. A main frame includes a rear pivot support defining a rear pivot axis. A front fork is pivotally coupled to the main frame and supported by the front wheel. A chainstay is pivotally coupled to the pivot support and supported by the rear wheel. The chainstay includes a left mounting portion and a right mounting portion. A bearing assembly pivotally supports the chainstay relative to the pivot support. The bearing assembly includes a pivot shaft having a left shaft portion and a right shaft portion movable relative to the left shaft portion along the rear pivot axis. The left mounting portion is secured to the left shaft portion and the right mounting portion is secured to the right shaft portion.