Mugen Seiki MTX-4 Aluminium Brake Bar, Reduced Flex - MTX4-43/TI by 3Racing  [MTX4-43/TI]

MTX-4 aluminium brake bar summary

This aluminium brake bar is a scale RC chassis component designed for the Mugen Seiki MTX-4 platform and listed as part number MTX4-43/TI. It is a direct-fit aluminium upgrade intended to cut part compliance and improve front-end feedback on carpet and dirt layouts.

As a tuning item, replacing a softer plastic bar with an aluminium unit stiffens the connection between the chassis and front suspension pickup points, changing steering response under load. The result is crisper initial turn-in and more repeatable steering through successive laps.

Fitting is straightforward for technicians experienced with MTX-4 maintenance: remove the original bar with the stock mounting screws, transfer any spacers or bushings to the aluminium piece, and install on the same mounts. Do not overtighten fasteners to avoid thread damage and verify alignment before running. Small adjustments to toe, camber, or shock trim are commonly used after fitting a firmer bar to dial in handling balance.