TR12 RD-M850

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Hall Lock G-Spec Ratchet Clutch G-Spec finishing touches: Carbon fiber cage & Upper link Extra wide parallelogram pivot Sealed cartridge bearings pulleys Attributes Cage Long Max F ront Difference Single chainring only Maximum Cog 50T Minimum Cog 9T Primary Color Black RD Capacity 41T RD Spring Type Hall Lock RD Weight 291g Speed 12 Show more