Crankset trekking FC-T4010 Octalink 3x9 170 mm 44-32-22 teeth 126 mm (chain line 50 mm) yes compatible open + hose patch group: without group binding model: FC-T4010 housing width: 68/73 mm switching steps rear: 9-speed type: Octalink compatible. Chain: HG 9 Hole circle: 104/64 mm large chainring: steel middle chainring: steel small chainring: steel chain line: 50 mm area of use: trekking