This 20T brake pulley is offered as a replacement spare for XRAY NT1 braking assemblies, supplied under 3Racing part code XN1-46/RE. It is an RC-scale accessory intended to fit the NT1 brake shaft and the surrounding brake linkage on 1/10 touring car chassis.
Use this pulley when servicing or replacing worn brake drive components, or when restoring original gearing after changes to brake linkages. The 20T tooth count is the key engagement attribute; confirm match with the existing pulley before fitting.
Installation notes: remove the brake assembly from the chassis, swap the pulley onto the brake shaft, and verify centring and clearance with the surrounding components. After installation, rotate the brake system through its range to check for smooth engagement and correct tooth mesh.
Tuning role: the pulley’s tooth count affects how the brake drive interfaces with the rest of the brake train, so replacing like-for-like preserves intended braking feel and leverage within the NT1 braking system.
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