TAMIYA FF-03 20T Counter Gear for FF03-03 by 3Racing  [FF03-03]

Precision 20T counter gear for FF-03 drive train

This 20T counter gear is a direct replacement intended for use with the TAMIYA FF-03 chassis gearbox assemblies. It functions as the secondary counter gear that meshes with the spur and pinion to set the final drive ratio and transmit motor torque through the gearbox.

Fitment is for FF-03 style gear trains that accept a 20-tooth counter gear; check the original part profile and shaft dimensions before installing. The gear is commonly used to refresh worn teeth or to tweak gear ratios to suit different track surfaces and lap demands.

Fitting involves removing the gearbox cover, extracting the old counter gear, inspecting bearings and shafts for wear, installing the replacement while setting correct tooth mesh and backlash, and reassembling. After a short test run, recheck engagement to ensure smooth operation and prevent premature wear.