This 3Racing V3R-0855/V2 is a Delrin 55T spur gear produced as a replacement spare or hop-up for the Kyosho V One RRR chassis. As an RC-scale drivetrain part, it focuses on reducing internal friction compared with some harder materials while preserving reliable tooth engagement for routine use and tuning.
Installation notes: inspect the gear teeth and gearbox bearings for wear before fitting, set mesh carefully between the motor pinion and this spur to avoid excessive preload, and verify smooth rotation of the gearbox after assembly. Delrin can be slightly more compliant than metal gears, so check for consistent mesh across the rotation and any signs of binding.
Tuning role: swap to this Delrin spur when experimenting with drivetrain feel or when replacing a worn factory spur to restore expected engagement. It interacts directly with your motor pinion and gearbox internals, so combine it with correct pinion sizing and secure mounting to maintain performance and drivability.
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