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Amazon.com : TRiPEAK 12T+14T Shimano Oversized Ceramic/Steel Bearing Jockey Wheel Pulley Set for 11Speed Shimano Dura Ace/Ultegra 91xx/R80xx/R70xx Road Cyclocross Gravel Rear Derailleur : Sports & Outdoors
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Amazon.com : TRiPEAK 12T+14T Shimano Oversized Ceramic/Steel Bearing Jockey Wheel Pulley Set for 11Speed Shimano Dura Ace/Ultegra 91xx/R80xx/R70xx Road Cyclocross Gravel Rear Derailleur : Sports & Outdoors
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Amazon.com : DJC Bike Bearing Pulley Wheel 2pcs Guide Roller Jockey 12t 14t 16t MTB Road Bike Rear Derailleur for Sram for Shimano M9000 R8000 Over Sized Narrow Wide Tooth (1pcs 12T
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Amazon.com : Shimano Alivio RD-M430 9-Speed Rear Derailleur Pulley Set : Bike Derailleurs : Sports & Outdoors
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