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Enduro Bicycle Products, Derailleur Pulleys - BKCJ-0361 - 13 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrinerailleur Pulleys for 12 speed Shimano XTR and XT Derailleurs (5mm boltole) - Black – endurobearings.com
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Review: Shimano's XTR 12-Speed Drivetrain Sets the Bar for Shifting Performance Under Power - Pinkbike
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Shimano Xtr Rd M9100 Rear Derailleur Shadow+ Sgs 12 Speed Mtb Bicycle Bike Derailleurs 10-51t - Bicycle Derailleur - AliExpress
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Amazon.com : Shimano XTR RD-M9100-GS Rear Derailleur - 12 Speed Medium Cage Gray with Clutch : Sports & Outdoors
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Amazon.com : Shimano XTR RD-M9100 XTR 12-Speed Rear derailleur, GS Medium cage, for 10-45T/single Ring : Sports & Outdoors
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