This CNC-machined 1st gear adaptor is a precise scale replacement tailored to NT1 drivetrain geometry. Constructed from aluminium to reduce flex at the spur-to-pinion junction, the adaptor promotes repeatable gear engagement and supports fine tuning of mesh and backlash in 1:10 on-road setups.
Engineered as a direct-fit component for NT1-spec gearboxes, it swaps into the factory location without reconfiguring the gearbox layout. The red anodised surface aids visual alignment checks while adding corrosion resistance to mating surfaces.
Installation is intended for experienced builders: mount using the original fastener points, verify concentricity of motor pinion and spur, then set backlash to suit your motor and pinion combination. Use feeler checks and quick run testing to confirm stable mesh. This component is for alignment and tuning refinement rather than major drivetrain redesigns.