This 38mm spinner is an accessory for RC models designed to fit a D3.0mm motor shaft and present a finished nose for electric prop setups. The translucent orange coating makes it easier to see alignment marks during build and pre-flight checks.
Fit depends on the exact shaft diameter: confirm your motor has a 3.0mm shaft and check for any shoulders or flats that could interfere. The spinner acts as a cosmetic and aerodynamic trim item and is useful for fine-tuning prop balance and forward weight distribution.
Installation tips: verify the spinner clears the cowling and motor mounts on your model and that it seats properly on the D3.0mm shaft. Follow normal spinner installation methods and rebalance after fitting any propeller or adapter to avoid vibrations.
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