The Giant MY21 TCR Disc Brake Dropout is a precision-engineered replacement component specifically designed for the model year 2021 TCR series road bikes equipped with disc brakes. As a critical interface between your rear derailleur and frame, this authentic Giant spare part restores factory-standard shifting performance and ensures proper wheel alignment. Whether you’re replacing a damaged component or maintaining your bike’s geometry, this derailleur hanger and dropout assembly delivers the reliability that competitive road cyclists depend on.







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