Shimano Deore 2-piece 9-Speed Mountain Bicycle Crank Set - FC-M590 Specification
- HOLLOWTECH II 2-piece crankset for stiffness and durability
- Super Narrow HG for 9-speed use
- Aluminum outer chainring and steel middle and inner chainrings
- 64/104mm bolt circle diameter
- Bottom bracket included. 1014 grams (w/bb)
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