The Serpent 500871 39T aluminum idler gear is a precision spare crafted to extend service life and tighten drivetrain feel on SRX2 Gen3 cars. Made from robust aluminium, it provides a dependable replacement for worn or stock idlers.
Aluminum offers improved strength with modest weight savings over heavier materials, helping the SRX2 Gen3 run with less drivetrain lash and more consistent power delivery during track sessions.
This idler is made to fit the Serpent Spyder SRX2 Gen3 layout without modification. Installation is straightforward with standard RC tools, letting you get back on the track quickly after a swap.
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