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First ride review: Shimano XTR M9100 12-speed drivetrain and 4-piston brakes | ENDURO Mountainbike Magazine
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New Shimano XTR M9100 Series Mountain Bike Components Debut new 12-speed, Ultra-Efficient Drive Train and FREEHUB System
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Review: Shimano's XTR 12-Speed Drivetrain Sets the Bar for Shifting Performance Under Power - Pinkbike
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