This carbon steel spur is an aftermarket service part for Traxxas TRX4 platforms that transmits drivetrain torque adjacent to the motor pinion. It matches the original tooth count so gear mesh and centre spacing are preserved without changing gearbox geometry.
Intended for hobby-scale crawling and common repair work like swapping a worn main gear, the carbon steel construction targets long-term wear resistance and dimensional consistency under normal RC operating conditions.
When the tooth count equals the factory gear, this carbon steel spur functions as a straightforward OEM-style replacement for TRX4/TRX6 main gears, helping restore drivetrain operation in 1/10 scale electric crawlers.
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