6 items with #4000kv

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How to Build A Micro Brushless
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GB90 Overlapping Props! Brushless micro
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GB 130 Reptile FPV Quadcopter Review - Mods, PIDs FPV flight!
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GB 130 Reptile FPV Quadcopter Unbox and Build (part 1)
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GB110 BNF FPV Brushless Micro
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Build A Brushless Micro