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

18-tooth aluminium pulley for NT1 belt drive

This 18-tooth aluminium pulley is designed for the XRAY NT1 chassis and acts as a direct replacement or spare within the NT1 belt drive arrangement. It suits routine drivetrain care where a solid, machined pulley is required.

Fitting is straightforward on NT1 setups: remove the existing pulley from the belt route, install the new pulley keeping original spacers and screws, then set belt alignment and tension before first use. No chassis changes are required for compatible NT1 assemblies.

In tuning terms this pulley is a service part to maintain consistent belt tracking and rotational stability. Many competitors keep spare aluminium pulleys to ensure repeatable performance after maintenance without adjusting gear ratios or pinion choices.