Adjustable Chainkeeper for Trek Carbon Road Bikes (OEM 573827 / 42020)

This is a high-precision, heavy-duty 3D replacement model for the original Trek Carbon Road Adjustable Chainkeeper. This crucial component prevents your bike chain from dropping inward and damaging your expensive carbon fiber frame during shifting or rough rides. The model includes the main mounting arm with integrated geometry for standard road frame bolt-on points and a pocket for a threaded insert to provide durable adjustment alignment Fits a wide range of carbon road frames from Trek, incl…

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