Token Fusion Tiramic Press Fit 30 Bottom Bracket: The Fusion Tiramic Press Fit 30 Bottom Bracket runs on super smooth Tiramic bearings & with lightweight construction, this product from Token offers a great upgrade alternative over its main stream competitors for BB30 & BB386 frames. For BB30 press fit frame (&216;46x 68mm) & BB386 frame (&216;46x 86.5mm) with BB30 &216;30mm crankset &216;46mm alloy CNC cups for strength, stiffness & precision PA+FIBER plastic cups allow for better frame tolerance With 6806TBT Tiramic bearings Weight:97g/set