Mission American BMX Bottom Bracket Kit consists of 2 precision sealed bearings, aluminum cups, high-density plastic cone spacers, a center-tube spacer, sprocket adapter and a bunch of adjustment washers.

Notice: Before buying a bottom bracket, you have to check what type your frame is compatible with. If it doesn't have integrated cups, an American bottom bracket would fit, but if your frame does have integrated cups, the bearings will not fit in the sockets.