This RC spur gear is designed for DP48 drive arrangements and is listed as Yokomo model YOKSG-A4886 featuring 86 teeth. It is intended to replace the main spur in DP48-compatible geartrains on 1/10 on-road platforms where spur selection directly affects gearing and performance.
Compatibility and fit: the DP48 designation implies a DP48-style gearbox and the matching pinion interface. Before installation, verify centre height, shaft clearance and that the tooth count aligns with your gearing plan.
Installation notes: secure the spur to the diff or carrier following your chassis guide, set a moderate initial mesh and then fine-tune with shims or motor mount adjustments to eliminate friction. Use the correct hex driver for set screws and check mesh again after a short run to ensure stability.
Tuning role: the 86T spur increases the driven gear size, delivering more mechanical advantage for stronger acceleration and hill-climb ability while reducing peak speed. Match the pinion selection to achieve the desired balance between torque and top-end velocity.
Maintenance: regularly inspect the tooth profile for wear or damage, clear any trapped debris after sessions, and make sure bearings and differential parts rotate freely to avoid premature failure of the spur assembly.
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