mcondonGranny Gear

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// Massachusetts

Hello, I would love to be wrong about this but according to the Dealer manual for the XT RDM8100 Rear Derailleur it is not compatible with the 45T Cassette. Looks like the 45T Cassette will work on the 2x Setup with the XT RDM8120 but as a 1x you have to get the XTR RD…
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