This Delrin main gear is a direct replacement part intended for Kyosho Inferno MP7.5 owners who need a single spare 46-tooth gear for drivetrain maintenance or setup changes. The part focuses on predictable wear characteristics and consistent gear mesh behavior typical of Delrin components, and is supplied as 1 pcs ready to fit the existing gearbox layout.
Installation is a straightforward swap of the spur assembly inside the gearbox; check gear mesh and backlash during reassembly and run the drivetrain by hand to confirm smooth engagement before powering up. In tuning terms, this gear is used to maintain drivetrain reliability and to fine-tune gear engagement when changing pinion sizes or adjusting spur position.
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