TruVativ STYLO Carbon Eagle Fat Bike Crankset - 170mm 12-Speed 30t Direct Mount DUB Spindle Interface For 190mm Rear Spacing BLKTruVativ STYLO Carbon Eagle Fat Bike Crankset 170mm 12 Speed 30t Direct Mount DUB Spindle Interface For 190mm Rear Spacing Black. The STYLO Carbon Eagle Fat Bike DUB crankset is for riders who feel most at home when riding endless single track. Built tough to handle lines through rock gardens and trail the new STYLO Carbon is strong stiff and light. Featuring SRAMs DUB technology this design simplifies the relationship of the spindle to the bottom