Sram X01 Eagle Dub, Crankset, Speed: 11/12, Spindle: 28.99Mm, Bcd: Direct Mount, 32, Dub, 175Mm, Grey, Mtb* SRAMs best, toughest and most aggressive Trail and Enduro crankset* DUB technology features a better engineered bottom bracket and a new spindle design for a more uniform approach to bottom bracket fitment, better sealing against contamination, and a new measure of durability* SRAM CARBON TUNED crank technology provides extreme stiffness and light weight