This is an RC-scale replacement spur gear designed for Kyosho V One RRR and V One RRR Evo chassis, manufactured by 3Racing as model V3R-0855. The Delrin material reduces friction at the gear mesh compared with standard nylon, helping to smooth engagement under load without changing gear ratio or tooth count.
Fitment and installation are straightforward for those familiar with spur gear swaps: remove the transmission cover, check the spur hub and motor pinion alignment, fit the Delrin gear onto the original spur hub, and verify mesh and clearance before final assembly. Inspect mating surfaces and bearings for wear to ensure consistent performance.
Tuning role: swapping to a low-friction Delrin spur is a tuning step to reduce drivetrain drag and deliver crisper throttle response on small-scale electric setups. Pay attention to proper gear mesh, pinion engagement, and noise as indicators of correct installation. This part is intended for RC model use only.
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