TB-03 Racing Grade 7075 Motor Mount TB03-15 Performance Edition by 3Racing  [TB03-15]

Racing-grade 7075 motor mount for TB-03 chassis

The TB03-15 is a CNC-minded 7075 aluminium motor mount developed to improve motor seating and repeatable alignment on the Tamiya TB-03 chassis. As a competitive hop-up, it reduces interface flex to maintain consistent pinion-to-spur engagement during aggressive driving and tuning cycles.

Designed to replace the stock plastic unit, the mount uses standard TB-03 mounting points and hardware while offering increased stiffness for improved drivetrain stability. The 7075 alloy resists deformation under load, which helps keep gear mesh stable through acceleration, braking and cornering transitions.

Installation follows conventional steps: remove the OEM mount, transfer motor and shims, fit the TB03-15 and secure with the chassis screws. After fitting, verify motor height, measure backlash and perform incremental mesh adjustments to achieve quiet, efficient engagement suited to race setups.

Use this mount to gain a firmer motor interface and more repeatable mesh, which simplifies competitive tuning and improves drivetrain consistency.