We at SRAM saw the opportunity to make a better press fit system where all the best from BB30 & PressFit bottom brackets would be combined into one captivating package. PressFit 30 will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. This bottom bracket is designed for 30mm spindle cranksets.