The 3Racing 3RAC-SG64102 is a 64 pitch spur with 102 teeth, developed to give competitive tuners finer resolution when selecting gear ratios for the F109 chassis. Its tooth count supports incremental changes that help optimise acceleration profiles on various track layouts.
Using a 102T spur reduces the step between pinion sizes, permitting tighter control over final drive ratios. This precision is useful when matching motor characteristics and tyre grip for lap time improvements.
The spur is intended to be a reliable component in a race package, offering predictable engagement and consistent performance across practice and race runs. Regular inspection and correct mesh setting will preserve drivetrain health and system reliability.