Team Associated RC18T 55T Titanium Main Gear TAR055T by GPM  [TAR055T]

RC18T 55-Tooth Titanium Spur

This 55T titanium main gear is an aftermarket spur made to fit Team Associated RC18T models, supplied as 1 pcs. It functions as a scale replacement spur intended for radio control use only and sits as the primary spur in the RC18T drivetrain.

The titanium material offers improved corrosion resistance and steady wear characteristics versus typical steel options, which helps maintain consistent tooth engagement over time. The gear mounts to the chassis spur hub and engages the motor pinion, so attention to mesh and alignment is essential for reliable operation.

Installation guidance: remove the old spur and clean the spline area, slide the new gear on the shaft and set the pinion-spur mesh with just a touch of backlash and no binding. Once mesh is confirmed, tighten the original fastener and rotate the drivetrain to check for smooth operation. Re-assess shimming if there is contact with gearbox parts.

Setup advice: fitting a titanium main gear focuses on long-term mesh stability rather than changing ratio behavior. After swapping parts, re-verify mesh and drivetrain runout, and consider how the chosen pinion size will affect torque and top speed on your chosen surface.