BCD: 120/90mm Otvory: 4 Kompatibilita s klikovou sadou: Gossamer MY21 Type Chainrings Color Black, Neutral Series GOSSAMER, SL-K Discipline ROAD, ROAD, GRAVEL Material Alloy Bolt Circle Diameter (BCD) 120/90 Crankset Type Double Drivetrain Compatibility Shimano10/11S, Sram10/11S, Shimano 10/11S, Sram 10/11S, FSA 11S Holes Number 4