shimano crankstel 3 x 10 speed trekking fc t521 met 175mm crankarm 44 32 24t octalink zwart10 speed crankset for trekking bike Based on concept of XT LX trekking products Stable and smooth switching operation Simple and sturdy design Integrated appearance of the chain guard Stiff and lightweight thanks to HOLLOWTECH, OCTALINK OCTALINK construction Recommended BB ES300 Product Specifications Brand: Shimano Shimano group: None Shimano group code: T521 Shimano model code: FC T521 Crank length: 175 mm Gearing: 44 32 24 Number of arms: 4 arm