This aluminium motor stiffener is a purpose-built upgrade for TAMIYA TA05-IFS and TA05-R chassis, produced as 3Racing part TA05-IF09/LB. It stiffens the motor mounting region to limit deformation under torque and braking loads, helping preserve consistent pinion-to-spur geometry.
The component is intended for TA05-IFS and TA05-R layouts and replaces or reinforces the standard motor mount arrangement on those Tamiya chassis. Aluminium construction provides a rigid interface between motor, gearbox and chassis rails.
Installation follows existing motor mount points on TA05-IFS and TA05-R and should not require alteration of drivetrain alignment. Fitment is straightforward for experienced tuners and supports setup work aimed at reducing drivetrain deflection.
Setup role: by reducing motor movement the stiffener contributes to repeatable gear engagement and predictable power delivery lap after lap. It is a chassis-level modification to be integrated with suspension and gearbox tuning for competitive on-track performance.