The Tamiya TB-03 Aluminum 7075 Spur Gear Adaptor by 3Racing TB03-14 is engineered to tighten the connection between the motor and spur gear for more predictable drivetrain behavior. Using 7075 aluminium, the adaptor helps preserve gear geometry under repeated high load cycles, aiding consistent tooth contact and helping reduce drivetrain backlash. It suits builds where repeatable setup and predictable power transfer are priorities.