The 3Racing 64 pitch spur gear with 102 teeth is intended to smooth power transfer in the F109 gearbox. It is a straightforward way to refine throttle response and rear traction for circuit running.
Because of the high tooth count, changes to pinion size produce smaller shifts in ratio, which makes it easier to find a track-friendly setup without large jumps in top speed.
Made to be part of a race-ready drivetrain, the 3RAC-SG64102 supports repeatable gear engagement and reduces the chance of sudden drivetrain issues during practice and competition.
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