D-MAX Compatible 48P 78T Precision Spur - SG-4878S Yokomo  [SG-4878S]

78-Tooth 48P Spur Overview

The SG-4878S is a 78-tooth spur specified for D-MAX series dual clutch (slipper) systems on 1/10 scale RC cars. It serves as a replacement or upgrade where a 48P spur is required, keeping the intended tooth count and enabling fine adjustments to slipper engagement and driveline characteristics.

For installation, confirm that the pinion and slipper unit are 48P compatible, establish the correct gear mesh to avoid excessive wear, and set the slipper preload to suit the vehicle weight and motor output. Remove debris from the installation area and ensure bearings and mating surfaces rotate smoothly prior to final tightening.

From a tuning standpoint, fitting a 78T spur shifts the effective gear ratio relative to other tooth counts, influencing throttle response and peak speed when used with slipper settings and motor timing. Apply gradual changes and evaluate on-track performance to determine the preferred balance between responsiveness and component life.

Compatibility

Compatible with D-MAX series dual clutch (slipper) assemblies that use 48P spur gear specifications.