XRAY NT1 Aluminum Pulley 18T by 3Racing XN1-40  [XN1-40]

Aluminum 18T pulley for NT1

This 18-tooth aluminum pulley from 3Racing is produced for use with the XRAY NT1 chassis and serves as a direct replacement or spare for the NT1 belt drive system. The part is intended for RC-scale drivetrain maintenance and setup adjustments where a durable, machined pulley is required.

Installation is straightforward on NT1-spec layouts: remove the existing pulley from the belt path, swap the pulley while keeping original spacers and fasteners, and confirm belt alignment and tension before first run. No chassis modification is required when used on compatible NT1 assemblies.

In tuning terms this pulley is a component-level item used to maintain consistent belt tracking and rotational stability. Teams use like-for-like aluminum pulleys when they need repeatable behavior after service or to replace worn stock parts without changing gear ratios or motor pinion choices.