The Serpent SER904180 58T spur gear is a practical upgrade for hobby racers focused on consistent drivetrain performance. The 58-tooth profile is intended for the Serpent 988E and supports smooth torque delivery under load.
This spur sits at the heart of the gearbox and influences acceleration, gearing feel, and drivetrain efficiency. The design aims for reliable meshing suited to recurring track use.
Replacing the spur is a routine maintenance task for most builders and fits the Serpent 988E without major modification. Verify gear mesh and bearing condition while you have the gearbox open.
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