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These are Shimano preload adjust nuts intended for use with XTR FC-M9100 cranks. They help secure the crankarm preload setting, supporting proper bearing adjustment on compatible drivetrain setups.

• Genuine Shimano replacement part for preload adjustment.
• Designed for use with Shimano XTR FC-M9100 cranks.
• Compatible with this specific crank model for dependable fit.
• Simple component that supports proper crank installation and adjustment.