Truvativ/SRAM PressFit 30 Ceramic Bottom Bracket 2014
Truvativ's PressFit 30 features 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 version uses ceramic ball bearings, which are lighter and harder than steel. When you couple that with their precision surface quality and friction/heat resistant nature, you get a bearing that rolls with less effort.