This 38mm spinner is an RC-scale electric motor nose cone designed to fit D3.0mm motor shafts. It serves as a direct replacement or upgrade part for models that accept a 3.0mm diameter shaft mount, and is supplied in red for visual matching with your model.
Compatibility and fit are defined by the shaft diameter: the spinner is intended for use with motor shafts measured at D3.0mm. Confirm shaft size before installation and ensure any prop adapter or collet used matches both the shaft and the spinner bore to avoid misfit.
Installation notes: slide the spinner onto the motor shaft or prop adaptor, align the spinner so it sits concentric to the shaft, then secure using the model's existing prop nut or retaining hardware. Check runout at low throttle and spin up carefully after installation; adjust alignment if vibration or imbalance is detected.
Tuning role: the spinner primarily offers a clean nose profile and centralized mounting for props or adapters, and can be used as a service part during maintenance or replacement cycles to restore proper fit and appearance.
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