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Shimano ZEE M640 10s 10 Speed Groupset Rear Derailleur + Trigger Shifter + ZRACE 11-34T 11-36T Cassette + ZRACE Chainring + KMC - AliExpress
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Amazon.com : SHIMANO RD-M640 Zee Shadow Plus 10 Speed Rear Derailleur (Use with 11-23/11-28 Cassette) : Rear Bike Derailleurs : Sports & Outdoors
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