This is a Hot Racing Aluminum drive Hub with Brake Disc for Traxxas Unlimited Desert Racer Series 

- CNC Aluminum brake disc Hex Star Drive Hub 
- Give the center of your wheel the cool look of a high performance metal brake disc
- Black anodized with silver accent vented metal brake disc

Two aluminum brake disk drive Hub. 

Assembly into the model following the manual that came with the 
original kit. 

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Replace Traxxas factory plastic star Hex disc brake Rotors TRA8569