This 18-tooth aluminium pulley is supplied for use with the XRAY NT1 chassis as a direct replacement or spare for the NT1 belt drive. It is aimed at routine drivetrain maintenance where a sturdy, machined pulley is preferred for repeatable results.
Installation on NT1-spec layouts is direct: remove the original pulley from the belt path, fit the new pulley using the original spacers and fasteners, then verify belt alignment and tension before track use. No chassis modification is required on compatible NT1 configurations.
From a setup viewpoint this pulley is a maintenance item that helps preserve belt routing and steady rotational behaviour. Racers commonly replace worn stock pulleys with like-for-like aluminium units to maintain consistent performance without changing gearing.
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