Shimano Deore M590/M533/M532/M510/M480 9-Speed Chainrings
Features:
- Fits many older Shimano pre-Hollowtech II cranksets with Octalink V2 or square spindle bottom brackets
- Middle chainrings from Octalink (Hollowtech I) and square spindle cranksets are not interchangeable with middle rings from Hollowtech II cranksets










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