This 56-tooth Delrin spur, model V3R-0856/V2, is supplied as a direct-fit replacement for the Kyosho V One RRR transmission. It is intended as a lighter-friction alternative to metal spurs, suited to on-road setups where reduced mesh drag and smoother spool-up are priorities.
Material and role: Delrin tooth faces lower surface friction against the pinion, which can reduce resistive losses in the gearbox and change throttle response. Treat this item as a tuning part for adjusting gear mesh and drivetrain behaviour rather than a bolt-on performance guarantee.
Installation notes: Access the spur by removing the radio tray or cover on the V One RRR, remove the original spur with the factory hardware, install the Delrin 56T in the same orientation, and tighten the original screws. Set the mesh with care to avoid binding or excessive play, then rotate the drivetrain by hand to confirm smooth engagement before powering the model.
Tuning considerations: Installing a Delrin spur can influence ideal pinion choice and motor feel. After fitting, re-check pinion-to-spur mesh, inspect for runout, and monitor tooth surfaces for wear during the break-in runs. Use incremental setup changes to dial in drivetrain smoothness and spool-up behaviour.
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